Boost Your BIM's keyboard shortcut tutor gives you a friendly reminder in a small modeless dialog box when you use the mouse to click on a command that has a keyboard shortcut. A button in the dialog can be used to see a list of all shortcuts.

Learn more at https://knowledge.autodesk.com/community/screencast/6d54d48d-f726-4a5e-adcb-25bf673953e3

Note: This app uses a custom installer (and not the standard App Store installer).