The zoom functions do not work.
To move in the three, top, side, front windows, first right click in one of those windows and then click camera.
While holding down the left or right mouse, you can pull out or zoom in or move in any direction. Thus allowing you to line up your objects.
Just like the irr front end. Ok.
that way does work, just made sure myself, also using the scroll wheel works aswel
in the years RF has been going things have changed from the genesis, thus why its not called genesis anymore
when you make your template on the right there is a button saying customise template, click this and now none of the options are greyed out, click solid and your sorted.
the faild to remove hidden brushes is not a problem, i cant rmember exactly what it was ment for but does nothing to your game
and for your last problem, if it seems to be lower, create one room, then with that same template, in the top right corner view move this in one direction only, you can lock directions by clicking buttons with arrow pictures above the view you are using, just dont forget to change them back when finished
so now you have made to rooms, both overlaping each other making sure there are no gaps put in your door way, this is a solid template, using the method i told you further up, make sure that this is smaller than your wall in all directions but still goes all the way through to both rooms.
if you have done successfuly then it will compile perfectly
if not your most likely problem is a 'leak' in your level where your cut brush goes out side the main walls into nothingness, if this is the case and you want to quickly sort this then make a template box, but not solid to hold the level within side it, but that is an ugly fix wich for making a game is a must not do, just a temporary solution while you learn about the engine.