I am trying to make a camera setup in my map for the first time. So I was following the tutorials and it said this; "First of all, we need three entities: a point_camera (point based), an info_camera_link (point based) and a func_wall (brush based)."

I do not have point_camera, in the Objects dropdown menu for enitities, I discovered this is because the game configuration is set to CounterStrike, even though i have been building for hl2dm and been running my map just fine anyway. So i went to change my game configuraion to hl2dm and a window comes up and says "changes wont take effect unitl you restart hammer" after which then changes everything back to the cs settings, and still hasnt changed back after i restart! its really annoying me, i was wondering if anybody had any thoughts or suggestions?

(I really want to make this camera for my map)

that has always been set to hl2dm, and i am fully updated. you can see why im a bit frustrated could there be anything else?