mortalis

The Pre button toggles the preformatted style on the selected text or the current line (applies <code><pre></code> tag to blocks). 
The Code button toggles the code style on the selected text or the current word (applies <code><code></code> tag to inline elements).
The default shortcuts for the buttons are:
<ul>
<li>Ctrl+Q – Pre</li>
<li>Ctrl+D – Code</li>
</ul>
In the admin Settings submenu it’s possible to change these shortcuts. 
Press a key combination in the text fields with the Ctrl key included and the text will be filled automatically. Or you can type it manually.
Some combinations may conflict with the default editor or browser shortcuts. 
So check them on your instance.
You may use these types of shortcuts:
<ul>
<li><code>Ctrl+B, .., Z (except AXCV)</code></li>
<li><code>Ctrl+0, .., 9</code></li>
<li><code>Ctrl+[symbols] (-=`[];'\/,.)</code></li>
<li><code>Ctrl+F1, .., F12</code></li>
<li><code>Ctrl+Pad0, .., Pad9</code></li>
<li><code>Ctrl+Pad/, Pad*, Pad+, Pad.</code></li>
<li><code>Ctrl+Shift+...</code></li>
<li><code>Ctrl+Alt+...</code></li>
<li><code>Ctrl+Shift+Alt+...</code></li>
</ul>
This plugin GitHub repository: https://github.com/mortalis13/tinymce-code-formatting.

TinyMCE Code Formatting

Nice and clean made plugin. Thank you!

Adds the Pre and Code buttons to the TinyMCE toolbar with customizable shortcuts

bradvin

This plugin allows you to easily bookmark/favorite posts, pages and custom post types. When you ‘star’ a post a shortcut link will appear in the admin menu. 
Use this plugin if you constantly find yourself editing the same posts or pages, and are sick of showing the list of posts first, then finding the post, then clicking edit.
Steps to use
<ol>
<li>Go to Pages</li>
<li>Click the Star icon on a page.</li>
<li>Your page is now bookmarked!</li>
<li>Repeat for other pages you always edit.</li>
<li>Save time!</li>
</ol>
Plugin Features
<ul>
<li>Intuitive interface to bookmark posts using a star icon.</li>
<li>Zero settings! Activate and enjoy.</li>
<li>Works with posts, pages and any custom post types.</li>
<li>Dashboard widget listing all bookmarks.</li>
<li>Setting a bookmark is done in realtime with no page reload.</li>
<li>Bookmarks are added to the admin menu for quick access under a “Bookmarks” menu item.</li>
<li>Adds a Bookmarks view/filter to the listing pages.</li>
<li>Bookmark shortcuts are also grouped by post type within the WordPress admin bar.</li>
<li>Optional “Bookmark Title” quick edit field to customize menu labels</li>
</ul>
Filters
<ul>
<li><code>admin_bookmarks_post_types</code> – Filter to scope bookmarks to specific post types</li>
<li><code>admin_bookmarks_untitled_label</code> – Filter to customize the untitled label</li>
<li><code>admin_bookmark_feature-dashboard_widget</code> – Filter to disable the dashboard widget</li>
<li><code>admin_bookmark_feature-quick-edit</code> – Filter to disable the quick edit feature</li>
<li><code>admin_bookmark_feature-view</code> – Filter to disable the view feature</li>
<li><code>admin_bookmark_feature-admin-bar</code> – Filter to disable the admin bar feature</li>
</ul>
To disable a feature, add a small bit of custom code to your theme’s <code>functions.php</code> file:
<pre><code>add_filter( 'admin_bookmark_feature-dashboard_widget', '__return_false' );
</code></pre>

Admin Bookmarks

Bookmark your favorite posts, pages or custom post types within the WordPress admin

TinyMCE Code Formatting vs Admin Bookmarks