GCS failsafe timer

Arducopter 4.0.7 latest fimware and trying to set GCS failsafe and FS_GCS_ FAILSAFE set to 1.

I know default time of GCS failsafe is 5sec …is there is any option opened up in latest firmware or mission planner to increase GCS failsafe timer to user defined time.

It exists in Plane. FS_SHORT_TIMEOUT and FS_LONG_TIMEOUT. It’s interesting that it doesn’t exist in Copter. I wonder why? It may be a request that you can bring forward.

Yes I know its already exists in plane .but in AC there is no time by user defined .