2 profiles split screen

My 2 sons play reach split screen . if one wants to do some thing for 5mins , is there a way to sign him out of split screen without going back to dashboard.

Open the guide and sign the account out.

If he is playing on a guest account, open the guide and press x to switch profiles which should sign him out also.

Yup. My wife and I play Reach split-screen all the time.

Just go back to the main menu and on the controller of the child who is stopping, press the center X button, sign out then press B on that same controller. The other child should still be on the main menu screen.

Will it revert back to full screen

Yes. It only goes into split-screen when two people play on the same console.

Sussed it ,thanks for your help .