Right now it seems that normal, +v, +o are supported. Modes h,a,q are not defined in the channel config. Oddly, mode q is recognized the same as +o. The other modes are not allowed to exec any commands.

Will be fixed soon. Probably for next RB

Could you give me a list of ALL the modes that should be supported?

o,v,h,q,a

All lowercase

+h being half-op, +q being quieted/muted, and what is +a? Why not +b too?

Done if you want to use this feature let it generate new channel files for you