Base.fgd Issue + Door Problems

I’m making a TTT map (using CSS as the game profile) and no base entities (func_breakable, etc.) are displaying in the entity list.

Source SDK is up to date and i even tried verifying the cache files for anything
missing - and the problem isint fixed. I even tried importing the contents of
base.fgd into cstrike.fgd (replacing the include base.fgd section) and that
didnt work either.

Also, how many units must a prop_rotating_door be from other doors and props (to
prevent the invisible wall in front of it) ?

Any idea how to fix these?

P.S. I dont know if it ever worked as im new to mapping and just started using
Hammer. :S