Remember Castlevania: Harmony Of Dissonance? If you pressed L or R, you'd do a dash in that direction. I'm getting ready to write something like that for ZC, where it'd check which direction you're facing. then if you press "R" you'd dash forwards, and if you pressed L, you'd dash backwards. So it'd check to see which direction you're facing, then if you pressed "L," you'd move down for two or three combospaces, and if you pressed "R," you'd dash forwards two to three combospaces.
This is actually more of a poll than anything else. Would you want L or R replaced? (Gotta go quick.. BRb.)