Try to use my
BSP DefinitionsManager (it should still work with BSplayer v2+)
Plus, if you want to change them (maybe after you clear them all with my utility) you can simply go to BSplayer preferences and change them from there (CTRL+P -> Key definitions & WinLIRC -> select the action you want to change and you can define it in the top right corner, field1 and field2, and remember to do the same thing with full screen definitions)