How do I place a stop on a futures option overnight?

When I tried checking the outside of RTH button after I hit the little clock it would not take. Was trading NQ. CME.

 

UVXY20-If you use a dedicated Future platform at a futures FCM, there is no outside regular trading hours. There is trading from open to close.

 

For options on futures, too?

 

Trading hours are 23 hours per day.

 

Yes, but option markets have narrower spreads during regulars trading hours.

 

I wonder why IB doesn't do outside RTH for futures options.