# Is there a generic way to lookup what a hotkey/shortcut does under current user prefs?

Example: today I worked through a tutorial where the person running the tutorial casually said "And now we'll double tap R..."

This is easy enough to follow, behaved as expected, and I can see that the behavior is different from just hitting R once and rotating normally. I am not sure what the nature of this difference is, though, and would like to be able to look up in my Blender interface: what action/behavior is currently mapped to the key combination "double-tap R"?

Is there a generic way of doing so?

You can go to Setting > Keymap, here is all the input event user does.
If you are using 2.79b for an old favor. The same panel is in user preference > Input.