Suggestion Schedule 18kpv modes

I would love it I could schedule the 18kpv mode changes.  I am using mine as a battery backup.  I have solar and just grid tie any extra back the the grid and keep the batteries at 100%.  Most hands off approach I can come up with but also is the most efficient.  What I'd like to do to make it more efficient is to schedule hours that I want it in standby.  That way I can take advantage of the low idle consumption during non-solar hours.  There is no reason to be running the inverter when the sun is down but I can't grid tie without inverters.  I'd like to have the inverters "kick on" at 8am and then switch to standby a 5pm.  Times will vary at different times of the year.  Doing this will save 50w * 15hrs (example).  When I'm only getting paid $0.03/kw every bit helps and 50*15*30 = 22.5kw/mo of waste.

-K