diff --git a/app/internal_packages/account-sidebar/lib/account-commands.ts b/app/internal_packages/account-sidebar/lib/account-commands.ts
index 1424d1f3b..ed81fb83b 100644
--- a/app/internal_packages/account-sidebar/lib/account-commands.ts
+++ b/app/internal_packages/account-sidebar/lib/account-commands.ts
@@ -110,7 +110,7 @@ export function registerMenuItems(accounts: Account[], sidebarAccountIds: string
     return;
   }
 
-  const idx = submenu.findIndex(({ type }) => type === 'separator');
+  const idx = submenu.findIndex(({ id }) => id === 'account-shortcuts-separator');
   if (!(idx > 0)) {
     return;
   }
diff --git a/app/internal_packages/contacts/lib/AddContactToolbar.tsx b/app/internal_packages/contacts/lib/AddContactToolbar.tsx
index 793c9a8d1..5ccc70326 100644
--- a/app/internal_packages/contacts/lib/AddContactToolbar.tsx
+++ b/app/internal_packages/contacts/lib/AddContactToolbar.tsx
@@ -31,7 +31,11 @@ class AddContactToolbarWithData extends React.Component<AddContactToolbarProps>
             tabIndex={-1}
             disabled={!enabled}
             className={`btn btn-toolbar btn-new-contact ${!enabled && 'btn-disabled'}`}
-            title={localized('New contact in %@', acct ? acct.label : 'account')}
+            title={
+              acct
+                ? localized('New contact in %@', acct.label)
+                : localized('Select an account to add a contact.')
+            }
             onClick={enabled ? this.onAdd : undefined}
           >
             <Icons.NewPerson />
diff --git a/app/internal_packages/contacts/lib/ContactDetailToolbar.tsx b/app/internal_packages/contacts/lib/ContactDetailToolbar.tsx
index 814a6167d..0a069258f 100644
--- a/app/internal_packages/contacts/lib/ContactDetailToolbar.tsx
+++ b/app/internal_packages/contacts/lib/ContactDetailToolbar.tsx
@@ -86,6 +86,7 @@ class ContactDetailToolbarWithData extends React.Component<ContactDetailToolbarP
           {perspective && perspective.type === 'group' && (
             <button
               tabIndex={-1}
+              title={localized('Remove from Group')}
               className={`btn btn-toolbar ${actionSet.length === 0 && 'btn-disabled'}`}
               onClick={actionSet.length > 0 ? this._onRemoveFromSource : undefined}
             >
@@ -94,14 +95,15 @@ class ContactDetailToolbarWithData extends React.Component<ContactDetailToolbarP
           )}
           <button
             tabIndex={-1}
-            className={`btn btn-toolbar ${actionSet.length === 0 && 'btn-disabled'}`}
             title={localized('Delete')}
+            className={`btn btn-toolbar ${actionSet.length === 0 && 'btn-disabled'}`}
             onClick={actionSet.length > 0 ? this._onDelete : undefined}
           >
             <RetinaImg name="toolbar-trash.png" mode={RetinaImg.Mode.ContentIsMask} />
           </button>
           <button
             tabIndex={-1}
+            title={localized('Edit')}
             className={`btn btn-toolbar ${!editable && 'btn-disabled'}`}
             onClick={editable ? () => Store.setEditing(actionSet[0].id) : undefined}
           >
diff --git a/app/internal_packages/contacts/lib/ContactPerspectivesList.tsx b/app/internal_packages/contacts/lib/ContactPerspectivesList.tsx
index e5aa172f4..2ce0fb76e 100644
--- a/app/internal_packages/contacts/lib/ContactPerspectivesList.tsx
+++ b/app/internal_packages/contacts/lib/ContactPerspectivesList.tsx
@@ -3,11 +3,13 @@ import {
   Account,
   AccountStore,
   ContactGroup,
+  ContactBook,
   Rx,
   Actions,
   DestroyContactGroupTask,
   SyncbackContactGroupTask,
   ChangeContactGroupMembershipTask,
+  localized,
 } from 'mailspring-exports';
 import { ContactsPerspective, Store } from './Store';
 import {
@@ -16,12 +18,14 @@ import {
   OutlineViewItem,
   ListensToFluxStore,
   ListensToObservable,
+  IOutlineViewItem,
 } from 'mailspring-component-kit';
 import { isEqual } from 'underscore';
 
 interface ContactsPerspectivesProps {
   accounts: Account[];
   groups: ContactGroup[];
+  books: ContactBook[];
   findInMailDisabled: string[];
   selected: ContactsPerspective | null;
   onSelect: (item: ContactsPerspective | null) => void;
@@ -36,9 +40,115 @@ function perspectiveForGroup(g: ContactGroup): ContactsPerspective {
   };
 }
 
+interface OutlineViewForAccountProps {
+  account: Account;
+  groups: ContactGroup[];
+  books: ContactBook[];
+  findInMailDisabled: boolean;
+  selected: ContactsPerspective | null;
+  onSelect: (item: ContactsPerspective | null) => void;
+}
+
+const OutlineViewForAccount = ({
+  account,
+  groups,
+  books,
+  selected,
+  onSelect,
+  findInMailDisabled,
+}: OutlineViewForAccountProps) => {
+  const items: IOutlineViewItem[] = [];
+
+  if (books.length) {
+    items.push({
+      id: 'all-contacts',
+      name: localized('All Contacts'),
+      iconName: 'person.png',
+      children: [],
+      selected: selected && selected.type === 'all',
+      onSelect: () =>
+        onSelect({ accountId: account.id, type: 'all', label: localized('All Contacts') }),
+      shouldAcceptDrop: () => false,
+    });
+
+    for (const group of groups) {
+      const perspective = perspectiveForGroup(group);
+      items.push({
+        id: `${perspective.accountId}-${perspective.label}`,
+        name: perspective.label,
+        iconName: 'label.png',
+        children: [],
+        selected: isEqual(selected, perspective),
+        onSelect: () => onSelect(perspective),
+        onEdited: (item, value: string) => {
+          Actions.queueTask(SyncbackContactGroupTask.forRenaming(group, value));
+        },
+        onDelete: () => {
+          Actions.queueTask(DestroyContactGroupTask.forRemoving(group));
+        },
+        onDrop: (item, { dataTransfer }) => {
+          const data = JSON.parse(dataTransfer.getData('mailspring-contacts-data'));
+          const contacts = data.ids.map(i => Store.filteredContacts().find(c => c.id === i));
+          Actions.queueTask(
+            ChangeContactGroupMembershipTask.forMoving({
+              direction: 'add',
+              contacts,
+              group,
+            })
+          );
+        },
+        shouldAcceptDrop: (item, { dataTransfer }) => {
+          if (!dataTransfer.types.includes('mailspring-contacts-data')) {
+            return false;
+          }
+          if (isEqual(selected, perspective)) {
+            return false;
+          }
+
+          // We can't inspect the drag payload until drop, so we use a dataTransfer
+          // type to encode the account IDs of threads currently being dragged.
+          const accountsType = dataTransfer.types.find(t => t.startsWith('mailspring-accounts='));
+          const accountIds = (accountsType || '').replace('mailspring-accounts=', '').split(',');
+
+          return isEqual(accountIds, [perspective.accountId]);
+        },
+      });
+    }
+  }
+
+  items.push({
+    id: 'found-in-mail',
+    name: localized('Found in Mail'),
+    iconName: 'inbox.png',
+    children: [],
+    className: findInMailDisabled ? 'found-in-mail-disabled' : '',
+    selected: selected && selected.type === 'found-in-mail',
+    shouldAcceptDrop: () => false,
+    onSelect: () =>
+      onSelect({
+        accountId: account.id,
+        type: 'found-in-mail',
+        label: `${localized('Found in Mail')} (${account.label})`,
+      }),
+  });
+
+  return (
+    <OutlineView
+      title={account.label}
+      items={items}
+      onItemCreated={
+        books.length > 0
+          ? name => Actions.queueTask(SyncbackContactGroupTask.forCreating(account.id, name))
+          : undefined
+      }
+    />
+  );
+};
+
 const ContactsPerspectivesWithData: React.FunctionComponent<ContactsPerspectivesProps> = ({
   findInMailDisabled,
   groups,
+  books,
   accounts,
   selected,
   onSelect,
@@ -57,87 +167,14 @@ const ContactsPerspectivesWithData: React.FunctionComponent<ContactsPerspectives
       />
     </section>
     {accounts.map(a => (
-      <OutlineView
+      <OutlineViewForAccount
         key={a.id}
-        title={a.label}
-        onItemCreated={name => Actions.queueTask(SyncbackContactGroupTask.forCreating(a.id, name))}
-        items={[
-          {
-            id: 'all-contacts',
-            name: 'All Contacts',
-            iconName: 'person.png',
-            children: [],
-            selected: selected && selected.accountId == a.id && selected.type === 'all',
-            onSelect: () => onSelect({ accountId: a.id, type: 'all', label: 'All Contacts' }),
-            shouldAcceptDrop: () => false,
-          },
-          ...groups
-            .filter(g => g.accountId === a.id)
-            .map(group => {
-              const perspective = perspectiveForGroup(group);
-              return {
-                id: `${perspective.accountId}-${perspective.label}`,
-                name: perspective.label,
-                iconName: 'label.png',
-                children: [],
-                selected: isEqual(selected, perspective),
-                onSelect: () => onSelect(perspective),
-                onEdited: (item, value: string) => {
-                  Actions.queueTask(SyncbackContactGroupTask.forRenaming(group, value));
-                },
-                onDelete: () => {
-                  Actions.queueTask(DestroyContactGroupTask.forRemoving(group));
-                },
-                onDrop: (item, { dataTransfer }) => {
-                  const data = JSON.parse(dataTransfer.getData('mailspring-contacts-data'));
-                  const contacts = data.ids.map(i =>
-                    Store.filteredContacts().find(c => c.id === i)
-                  );
-                  Actions.queueTask(
-                    ChangeContactGroupMembershipTask.forMoving({
-                      direction: 'add',
-                      contacts,
-                      group,
-                    })
-                  );
-                },
-                shouldAcceptDrop: (item, { dataTransfer }) => {
-                  if (!dataTransfer.types.includes('mailspring-contacts-data')) {
-                    return false;
-                  }
-                  if (isEqual(selected, perspective)) {
-                    return false;
-                  }
-
-                  // We can't inspect the drag payload until drop, so we use a dataTransfer
-                  // type to encode the account IDs of threads currently being dragged.
-                  const accountsType = dataTransfer.types.find(t =>
-                    t.startsWith('mailspring-accounts=')
-                  );
-                  const accountIds = (accountsType || '')
-                    .replace('mailspring-accounts=', '')
-                    .split(',');
-
-                  return isEqual(accountIds, [perspective.accountId]);
-                },
-              };
-            }),
-          {
-            id: 'found-in-mail',
-            name: 'Found in Mail',
-            iconName: 'inbox.png',
-            children: [],
-            className: findInMailDisabled.includes(a.id) ? 'found-in-mail-disabled' : '',
-            selected: selected && selected.accountId == a.id && selected.type === 'found-in-mail',
-            shouldAcceptDrop: () => false,
-            onSelect: () =>
-              onSelect({
-                accountId: a.id,
-                type: 'found-in-mail',
-                label: `Found in Mail (${a.label})`,
-              }),
-          },
-        ]}
+        account={a}
+        findInMailDisabled={findInMailDisabled.includes(a.id)}
+        books={books.filter(b => b.accountId === a.id)}
+        groups={groups.filter(b => b.accountId === a.id)}
+        selected={selected && selected.accountId === a.id ? selected : null}
+        onSelect={onSelect}
       />
     ))}
   </ScrollRegion>
@@ -148,6 +185,7 @@ export const ContactPerspectivesList = ListensToObservable(
     stores: [AccountStore, Store],
     getStateFromStores: () => ({
       accounts: AccountStore.accounts(),
+      books: Store.books(),
       groups: Store.groups(),
       selected: Store.perspective(),
       onSelect: s => Store.setPerspective(s),
diff --git a/app/internal_packages/contacts/lib/Store.ts b/app/internal_packages/contacts/lib/Store.ts
index 5316dd4ff..9d54600a7 100644
--- a/app/internal_packages/contacts/lib/Store.ts
+++ b/app/internal_packages/contacts/lib/Store.ts
@@ -1,5 +1,11 @@
 import Rx from 'rx-lite';
-import { DatabaseStore, Contact, ContactGroup, MutableQuerySubscription } from 'mailspring-exports';
+import {
+  DatabaseStore,
+  Contact,
+  ContactGroup,
+  ContactBook,
+  MutableQuerySubscription,
+} from 'mailspring-exports';
 import MailspringStore from 'mailspring-store';
 import { ListTabular } from 'mailspring-component-kit';
 
@@ -10,6 +16,7 @@ class ContactsWindowStore extends MailspringStore {
   _contacts: Contact[] = [];
   _contactsSubscription: MutableQuerySubscription<Contact>;
   _groups: ContactGroup[] = [];
+  _books: ContactBook[] = [];
   _search: string = '';
   _filtered: Contact[] | null = null;
   _editing: string | 'new' | false = false;
@@ -24,6 +31,7 @@ class ContactsWindowStore extends MailspringStore {
         .where(Contact.attributes.refs.greaterThan(0))
         .where(Contact.attributes.hidden.equal(false));
       this._contactsSubscription = new MutableQuerySubscription<Contact>(contacts);
+
       Rx.Observable.fromNamedQuerySubscription('contacts', this._contactsSubscription).subscribe(
         contacts => {
           this._contacts = contacts as Contact[];
@@ -32,14 +40,24 @@ class ContactsWindowStore extends MailspringStore {
         }
       );
 
-      const groups = Rx.Observable.fromQuery(DatabaseStore.findAll<ContactGroup>(ContactGroup));
-      groups.subscribe(groups => {
-        this._groups = groups;
+      Rx.Observable.fromQuery(DatabaseStore.findAll<ContactGroup>(ContactGroup)).subscribe(
+        groups => {
+          this._groups = groups;
+          this.trigger();
+        }
+      );
+
+      Rx.Observable.fromQuery(DatabaseStore.findAll<ContactBook>(ContactBook)).subscribe(books => {
+        this._books = books;
         this.trigger();
       });
     });
   }
 
+  books() {
+    return this._books;
+  }
+
   groups() {
     return this._groups;
   }
diff --git a/app/internal_packages/contacts/lib/main.tsx b/app/internal_packages/contacts/lib/main.tsx
index 4292325c7..2c04ede56 100644
--- a/app/internal_packages/contacts/lib/main.tsx
+++ b/app/internal_packages/contacts/lib/main.tsx
@@ -8,7 +8,7 @@ import { FoundInMailEnabledBar } from './FoundInMailEnabledBar';
 
 function adjustMenus() {
   const contactMenu: typeof AppEnv.menu.template[0] = {
-    key: 'Contact',
+    id: 'Contact',
     label: localized('Contact'),
     submenu: [
       {
@@ -32,10 +32,8 @@ function adjustMenus() {
     ],
   };
 
-  const template = AppEnv.menu.template.filter(
-    item => item.key !== 'Thread' && item.key !== 'View'
-  );
-  const editIndex = template.findIndex(item => item.key === 'Edit');
+  const template = AppEnv.menu.template.filter(item => item.id !== 'Thread' && item.id !== 'View');
+  const editIndex = template.findIndex(item => item.id === 'Edit');
   template.splice(editIndex + 1, 0, contactMenu);
 
   AppEnv.menu.template = template;
diff --git a/app/keymaps/base.json b/app/keymaps/base.json
index 8ff16086a..ee2c12329 100644
--- a/app/keymaps/base.json
+++ b/app/keymaps/base.json
@@ -44,7 +44,8 @@
   "window:select-account-8": "mod+9",
 
   "window:sync-mail-now": "f5",
-
+  "application:show-main-window": "mod+0",
+  
   "contenteditable:underline": "mod+u",
   "contenteditable:bold": "mod+b",
   "contenteditable:italic": "mod+i",
diff --git a/app/menus/darwin.js b/app/menus/darwin.js
index 1b9a2ac87..5d4af3e2b 100644
--- a/app/menus/darwin.js
+++ b/app/menus/darwin.js
@@ -3,7 +3,7 @@ const { localized } = require('../src/intl');
 module.exports = {
   menu: [
     {
-      key: 'Mailspring',
+      id: 'Mailspring',
       label: 'Mailspring',
       submenu: [
         { label: localized('About Mailspring'), command: 'application:about' },
@@ -42,7 +42,7 @@ module.exports = {
       ],
     },
     {
-      key: 'File',
+      id: 'File',
       label: localized('File'),
       submenu: [
         { label: localized('Sync New Mail Now'), command: 'window:sync-mail-now' },
@@ -56,7 +56,7 @@ module.exports = {
     },
 
     {
-      key: 'Edit',
+      id: 'Edit',
       label: localized('Edit'),
       submenu: [
         { label: localized('Undo'), command: 'core:undo' },
@@ -86,7 +86,7 @@ module.exports = {
     },
 
     {
-      key: 'View',
+      id: 'View',
       label: localized('View'),
       submenu: [
         {
@@ -140,7 +140,7 @@ module.exports = {
     },
 
     {
-      key: 'Thread',
+      id: 'Thread',
       label: localized('Thread'),
       submenu: [
         { label: localized('Reply'), command: 'core:reply' },
@@ -192,7 +192,7 @@ module.exports = {
     },
 
     {
-      key: 'Developer',
+      id: 'Developer',
       label: localized('Developer'),
       submenu: [
         {
@@ -202,7 +202,6 @@ module.exports = {
         },
         { type: 'separator' },
         { label: localized('Calendar Preview'), command: 'application:show-calendar' },
-        { label: localized('Contacts Preview'), command: 'application:show-contacts' },
         { type: 'separator' },
         { label: localized('Create a Plugin') + '...', command: 'window:create-package' },
         { label: localized('Install a Plugin') + '...', command: 'window:install-package' },
@@ -221,13 +220,22 @@ module.exports = {
       ],
     },
     {
-      key: 'Window',
+      id: 'Window',
       label: localized('Window'),
       submenu: [
         { label: localized('Minimize'), command: 'application:minimize' },
         { label: localized('Zoom'), command: 'application:zoom' },
-        { type: 'separator', id: 'window-list-separator' },
         { type: 'separator' },
+        {
+          label: localized('Message Viewer'),
+          command: 'application:show-main-window',
+        },
+        {
+          label: localized('Contacts'),
+          command: 'application:show-contacts',
+        },
+        { type: 'separator', id: 'window-list-separator' },
+        { type: 'separator', id: 'account-shortcuts-separator' },
         {
           label: localized('Bring All to Front'),
           command: 'application:bring-all-windows-to-front',
@@ -236,7 +244,7 @@ module.exports = {
     },
 
     {
-      key: 'Help',
+      id: 'Help',
       label: localized('Help'),
       submenu: [
         { label: localized('Mailspring Help'), command: 'application:view-help' },
diff --git a/app/menus/linux.js b/app/menus/linux.js
index a2e8635b5..c151b6f72 100644
--- a/app/menus/linux.js
+++ b/app/menus/linux.js
@@ -3,7 +3,7 @@ const { localized } = require('../src/intl');
 module.exports = {
   menu: [
     {
-      key: 'File',
+      id: 'File',
       label: localized('File'),
       submenu: [
         { label: localized('Sync New Mail Now'), command: 'window:sync-mail-now' },
@@ -24,7 +24,7 @@ module.exports = {
     },
 
     {
-      key: 'Edit',
+      id: 'Edit',
       label: localized('Edit'),
       submenu: [
         { label: localized('Undo'), command: 'core:undo' },
@@ -58,7 +58,7 @@ module.exports = {
     },
 
     {
-      key: 'View',
+      id: 'View',
       label: localized('View'),
       submenu: [
         {
@@ -110,7 +110,7 @@ module.exports = {
     },
 
     {
-      key: 'Thread',
+      id: 'Thread',
       label: localized('Thread'),
       submenu: [
         { label: localized('Reply'), command: 'core:reply' },
@@ -161,7 +161,7 @@ module.exports = {
       ],
     },
     {
-      key: 'Developer',
+      id: 'Developer',
       label: localized('Developer'),
       submenu: [
         {
@@ -171,7 +171,6 @@ module.exports = {
         },
         { type: 'separator' },
         { label: localized('Calendar Preview'), command: 'application:show-calendar' },
-        { label: localized('Contacts Preview'), command: 'application:show-contacts' },
         { type: 'separator' },
         { label: localized('Create a Plugin') + '...', command: 'window:create-package' },
         { label: localized('Install a Plugin') + '...', command: 'window:install-package' },
@@ -189,16 +188,27 @@ module.exports = {
       ],
     },
     {
-      key: 'Window',
+      id: 'Window',
       label: localized('Window'),
       submenu: [
         { label: localized('Minimize'), command: 'application:minimize' },
         { label: localized('Zoom'), command: 'application:zoom' },
+        { type: 'separator' },
+        {
+          label: localized('Message Viewer'),
+          command: 'application:show-main-window',
+          accelerator: 'CmdOrCtrl+0',
+        },
+        {
+          label: localized('Contacts'),
+          command: 'application:show-contacts',
+        },
         { type: 'separator', id: 'window-list-separator' },
+        { type: 'separator', id: 'account-shortcuts-separator' },
       ],
     },
     {
-      key: 'Help',
+      id: 'Help',
       label: localized('Help'),
       submenu: [
         { label: 'VERSION', enabled: false },
diff --git a/app/menus/win32.js b/app/menus/win32.js
index 2138ec76b..ed547309d 100644
--- a/app/menus/win32.js
+++ b/app/menus/win32.js
@@ -3,7 +3,7 @@ const { localized } = require('../src/intl');
 module.exports = {
   menu: [
     {
-      key: 'Edit',
+      id: 'Edit',
       label: localized('Edit'),
       submenu: [
         { label: localized('Undo'), command: 'core:undo' },
@@ -33,7 +33,7 @@ module.exports = {
     },
 
     {
-      key: 'View',
+      id: 'View',
       label: localized('View'),
       submenu: [
         {
@@ -87,7 +87,7 @@ module.exports = {
     },
 
     {
-      key: 'Thread',
+      id: 'Thread',
       label: localized('Thread'),
       submenu: [
         { label: localized('Reply'), command: 'core:reply' },
@@ -138,7 +138,7 @@ module.exports = {
       ],
     },
     {
-      key: 'Developer',
+      id: 'Developer',
       label: localized('Developer'),
       submenu: [
         {
@@ -148,7 +148,6 @@ module.exports = {
         },
         { type: 'separator' },
         { label: localized('Calendar Preview'), command: 'application:show-calendar' },
-        { label: localized('Contacts Preview'), command: 'application:show-contacts' },
         { type: 'separator' },
         { label: localized('Create a Plugin') + '...', command: 'window:create-package' },
         { label: localized('Install a Plugin') + '...', command: 'window:install-package' },
@@ -167,12 +166,23 @@ module.exports = {
       ],
     },
     {
-      key: 'Window',
+      id: 'Window',
       label: localized('Window'),
       submenu: [
         { label: localized('Minimize'), command: 'application:minimize' },
         { label: localized('Zoom'), command: 'application:zoom' },
+        { type: 'separator' },
+        {
+          label: localized('Message Viewer'),
+          command: 'application:show-main-window',
+          accelerator: 'CmdOrCtrl+0',
+        },
+        {
+          label: localized('Contacts'),
+          command: 'application:show-contacts',
+        },
         { type: 'separator', id: 'window-list-separator' },
+        { type: 'separator', id: 'account-shortcuts-separator' },
       ],
     },
     { type: 'separator' },
diff --git a/app/src/browser/application-menu.ts b/app/src/browser/application-menu.ts
index ae0663104..18d5663d2 100644
--- a/app/src/browser/application-menu.ts
+++ b/app/src/browser/application-menu.ts
@@ -154,24 +154,17 @@ export default class ApplicationMenu {
     }
     const idx = windowMenu.submenu.findIndex(({ id }) => id === 'window-list-separator');
 
-    let workShortcut = 'CmdOrCtrl+alt+w';
-    if (process.platform === 'win32') {
-      workShortcut = 'ctrl+shift+w';
-    }
-
-    const accelerators = {
-      default: 'CmdOrCtrl+0',
-      work: workShortcut,
-    };
     const windows = global.application.windowManager.getOpenWindows();
-    const windowsItems = windows.map(w => ({
-      label: w.loadSettings().title || 'Window',
-      accelerator: accelerators[w.windowType],
-      click() {
-        w.show();
-        w.focus();
-      },
-    }));
+    const windowsItems = windows
+      .filter(w => w.windowType !== 'default' && w.windowType !== 'contacts')
+      .map(w => ({
+        label: w.loadSettings().title || 'Window',
+        click() {
+          w.show();
+          w.focus();
+        },
+      }));
+
     return windowMenu.submenu.splice(idx, 0, { type: 'separator' }, ...windowsItems);
   }
 
diff --git a/app/src/components/outline-view.tsx b/app/src/components/outline-view.tsx
index 4031c841b..6442c5fbf 100644
--- a/app/src/components/outline-view.tsx
+++ b/app/src/components/outline-view.tsx
@@ -67,7 +67,7 @@ interface OutlineViewState {
  * @param {props.onCollapseToggled} props.onCollapseToggled
  * @class OutlineView
  */
-class OutlineView extends Component<OutlineViewProps, OutlineViewState> {
+export class OutlineView extends Component<OutlineViewProps, OutlineViewState> {
   static displayName = 'OutlineView';
 
   /*
@@ -232,5 +232,3 @@ class OutlineView extends Component<OutlineViewProps, OutlineViewState> {
     );
   }
 }
-
-export default OutlineView;
diff --git a/app/src/flux/models/contact-book.ts b/app/src/flux/models/contact-book.ts
new file mode 100644
index 000000000..94464f13d
--- /dev/null
+++ b/app/src/flux/models/contact-book.ts
@@ -0,0 +1,32 @@
+/* eslint global-require: 0 */
+import { Model, AttributeValues } from './model';
+import Attributes from '../attributes';
+
+export class ContactBook extends Model {
+  static attributes = {
+    ...Model.attributes,
+
+    readonly: Attributes.String({
+      modelKey: 'readonly',
+    }),
+
+    source: Attributes.String({
+      modelKey: 'source',
+    }),
+  };
+
+  readonly: boolean;
+  source: 'carddav' | 'gpeople';
+
+  static sortOrderAttribute = () => {
+    return ContactBook.attributes.id;
+  };
+
+  static naturalSortOrder = () => {
+    return ContactBook.sortOrderAttribute().ascending();
+  };
+
+  constructor(data: AttributeValues<typeof ContactBook.attributes>) {
+    super(data);
+  }
+}
diff --git a/app/src/flux/models/contact-group.ts b/app/src/flux/models/contact-group.ts
index 1bd4f1155..69041c7c8 100644
--- a/app/src/flux/models/contact-group.ts
+++ b/app/src/flux/models/contact-group.ts
@@ -1,5 +1,4 @@
 /* eslint global-require: 0 */
-import _str from 'underscore.string';
 import { Model, AttributeValues } from './model';
 import Attributes from '../attributes';
 
@@ -12,6 +11,8 @@ export class ContactGroup extends Model {
     }),
   };
 
+  public name: string;
+
   static sortOrderAttribute = () => {
     return ContactGroup.attributes.name;
   };
@@ -20,8 +21,6 @@ export class ContactGroup extends Model {
     return ContactGroup.sortOrderAttribute().ascending();
   };
 
-  public name: string;
-
   constructor(data: AttributeValues<typeof ContactGroup.attributes>) {
     super(data);
   }
diff --git a/app/src/global/mailspring-component-kit.d.ts b/app/src/global/mailspring-component-kit.d.ts
index 6befe04bd..1c4895f35 100644
--- a/app/src/global/mailspring-component-kit.d.ts
+++ b/app/src/global/mailspring-component-kit.d.ts
@@ -40,7 +40,7 @@ export * from '../components/disclosure-triangle';
 export const EditableList: typeof import('../components/editable-list').default;
 export const DropdownMenu: typeof import('../components/dropdown-menu').default;
 export const OutlineViewItem: typeof import('../components/outline-view-item').default;
-export const OutlineView: typeof import('../components/outline-view').default;
+export * from '../components/outline-view';
 export const DateInput: typeof import('../components/date-input').default;
 export const DatePicker: typeof import('../components/date-picker').default;
 export const TimePicker: typeof import('../components/time-picker').default;
diff --git a/app/src/global/mailspring-exports.d.ts b/app/src/global/mailspring-exports.d.ts
index fc861fdca..3aba002b3 100644
--- a/app/src/global/mailspring-exports.d.ts
+++ b/app/src/global/mailspring-exports.d.ts
@@ -44,6 +44,7 @@ export * from '../flux/models/thread';
 export * from '../flux/models/account';
 export * from '../flux/models/message';
 export * from '../flux/models/contact';
+export * from '../flux/models/contact-book';
 export * from '../flux/models/contact-group';
 export * from '../flux/models/category';
 export * from '../flux/models/calendar';
@@ -80,6 +81,8 @@ export * from '../flux/tasks/change-role-mapping-task';
 export * from '../flux/tasks/send-feature-usage-event-task';
 export * from '../flux/tasks/syncback-contact-task';
 export * from '../flux/tasks/destroy-contact-task';
+export * from '../flux/tasks/destroy-contactgroup-task';
+export * from '../flux/tasks/syncback-contactgroup-task';
 export * from '../flux/tasks/change-contactgroup-membership-task';
 
 // Stores
diff --git a/app/src/global/mailspring-exports.js b/app/src/global/mailspring-exports.js
index 371ecf526..f3d6c888c 100644
--- a/app/src/global/mailspring-exports.js
+++ b/app/src/global/mailspring-exports.js
@@ -81,6 +81,7 @@ lazyLoadAndRegisterModel(`Thread`, 'thread');
 lazyLoadAndRegisterModel(`Account`, 'account');
 lazyLoadAndRegisterModel(`Message`, 'message');
 lazyLoadAndRegisterModel(`Contact`, 'contact');
+lazyLoadAndRegisterModel(`ContactBook`, 'contact-book');
 lazyLoadAndRegisterModel(`ContactGroup`, 'contact-group');
 lazyLoadAndRegisterModel(`Category`, 'category');
 lazyLoadAndRegisterModel(`Calendar`, 'calendar');
diff --git a/app/src/menu-helpers.ts b/app/src/menu-helpers.ts
index 4a62f577f..b3e8fc24d 100644
--- a/app/src/menu-helpers.ts
+++ b/app/src/menu-helpers.ts
@@ -8,24 +8,17 @@ import _ from 'underscore';
 
 const ItemSpecificities = new WeakMap();
 
-export type IMenuItem =
-  | {
-      label: string;
-      submenu?: IMenuItem[];
-      type?: string;
+export type IMenuItem = {
+  label?: string;
+  submenu?: IMenuItem[];
+  type?: 'separator';
 
-      key?: string; //unlocalized label
-      command?: string;
-      enabled?: boolean;
-      hideWhenDisabled?: boolean;
-      visible?: boolean;
-    }
-  | {
-      key?: string; //unlocalized label
-      label?: string;
-      submenu?: IMenuItem[];
-      type: 'separator';
-    };
+  id?: string; //unlocalized label
+  command?: string;
+  enabled?: boolean;
+  hideWhenDisabled?: boolean;
+  visible?: boolean;
+};
 
 export function merge(menu: IMenuItem[], item: IMenuItem, itemSpecificity?: number) {
   let matchingItem;
diff --git a/mailsync b/mailsync
index e78951655..8c3e2ad5b 160000
--- a/mailsync
+++ b/mailsync
@@ -1 +1 @@
-Subproject commit e78951655f7bc194029c709549c0f5c1a29e9c85
+Subproject commit 8c3e2ad5ba07b19fd96fe18cbe589b8c05c72e8c