Trying to find where to disable individual keyboard shortcuts in the jQuery version of TinyMCE editor. Currently the list of allowable shortcuts is:
For TinyMCE v4: List of keyboard shortcuts available within the editor body
tinyMCE.init({ setup: function(editor) { editor.on("init", function(){ editor.shortcuts.remove('meta+u', '', ''); // "meta" maps to Command on Mac and Ctrl on PC }); } })