Turn options on and off on the fly.

[tjmax]

I think certain things like

Dropping lucky eggs
Hanging around lured spots
Catch pokemon
loot poke stops
Use incense

Should be on the fly toggle. That way you can drop a lucky egg before evolving with out having to log out to do it.

 

[L0rdAA]

I struggle with that when I try to evolve my pidgeys and rats .. I hope it added soon