next frame

Hello–
I’m new to Toon Boom Studio. I want a keyboard command to go to the Next Frame on the timeline, but I’m not finding it? Any suggestions?

thanks

Next Frame [S]
Previous Frame [A]

http://docs.toonboom.com/help/toon-boom-studio/#TBS/User_Guide/019_Shortcuts/keyboard_shortcuts.html%3FTocPath%3DUser%20Guide|_____20