mortalis

The button and shortcut toggle the preformatted style on the selected text or the current line. It uses the same command as the Pre item in the Formatting list in the toolbar.

TinyMCE Pre Button

Adds the Pre button to the TinyMCE toolbar and the shortcut Ctrl+0 to format text with <pre> tag

Mindvalley

A framework to add additional shortcut keys to the post editor page.
E.g.
<ul>
<li>Ctrl+Alt+p = Publish</li>
<li>Ctrl+Alt+s = Save Draft</li>
<li>Ctrl+Alt+l = Preview</li>
</ul>
Modify key mappings under Settings > MV Shortcut.
Works on PC and Mac.

MindValley Shortcut Framework

Collection of Additional Keyboard Shortcuts for Post Editor page.

TinyMCE Pre Button vs MindValley Shortcut Framework