MPlayerX frame skip keyboard shortcut While playing a video in MPlayerX the right and left arrows skip ahead and back 10s respectively. When paused, the right arrow goes ahead 1 frame but the left arrow still goes back 10s.

How do I skip only 1 frame back? Is there some way to assign the left-arrow-while-paused to do this?

Could the "Extra options" in the "advanced" section of the preferences be useful here? is there any documentation on how to use this?
Did some research, looks like you can change values using some commands, havent tried it myself though.

http://blog.mplayerx.org/blog/2013/02/01/hidden-settings/