Tool tips provide an instantaneous reference for shortcuts. InDesign also provides a shortcut editor in which you can view and generate a list of all shortcuts, and edit or create your own shortcuts. The shortcut editor includes all the commands that accept shortcuts, but some of these commands are undefined in the Default shortcut set.
You can also associate keyboard shortcuts with paragraph or character styles (Define paragraph and character styles) or scripts (see Scripting in InDesign).
For a video on using keyboard shortcuts, see www.adobe.com/go/vid0066.
A text file opens with all current and undefined shortcuts for that set.