olaolayuan Welcome to the Spine forum!
The W and S keys can be used to move to a keyed frame. The keys for playback can be found in the Playback section of hotkeys.txt. Spine also has a number of useful hotkeys that are not keyed by default, so be sure to check them out:
This text file can be opened from the Open button in the Hotkeys section of Spine Settings window, which can be opened by pressing the F12 key:
