How to increase the auto sign-out duration?
 

I work while I browse occ and I see that I get auto sign-out after a very short while due to no activity, can I increase it by some setting to may be an hour? It's really annoying.

Isn't that a browser issue? I can be signed it OCC for hours with no activity at all

Make sure the "Remember me" box is checked when you login.
That should keep you logged in until you logout manually or delete your cookies.