How do you jump through animation keyframes in a loop? How do you jump through animation keyframes in a loop? Currently when using the "jump to keyframe" hotkey the playhead stops on the last keyframe rather than going back to the start. 

I can press "Spacebar" to loop an animation but I'd like to loop through keyframes with a hotkey.
I'd also like an answer for the same problem.
My workaround is to press Shift+Left/Right arrow to go to the start/end.
Also setting the automatic play range Ctrl+Alt+P helps. When I press the above hotkeys, it goes to first/last keyframe.