You can fix the Left/Right buttons with Hijack ir_translate codes: use the codes from the Kenwood Remote for this, as they're the only ones that work right now. There's a thread elsewhere here where tfabris (I think) figured all that out.

In the meanwhile, the Hijack knob (short press) popup menu has a "KnobSeek" function for much easier manual tuning of the radio.

Cheers