Hi! I've started to fool around with Hammer making my way around. I do have some questions though. How do you test your map? When I compile the map, Hammer tries to start a new instance of TF2 to test it. How can I set Hammer up not to start TF2 when done compiling and how can I restart my map from TF2 (that is always on) to test it? I've noticed that when I have one block inside the other and their faces touch I can see textures ripping one through another - for example a door sliding into a wall remains partially visible. What is a good practice here? Best I've come up with using no draw textures, making doors larger than the opening and liberal use of door frames. I'm sure there is a better way. Speaking of doors, I find "open on touch" lacking and I want to have a trigger area around the door which opens the door when a player enters it. How do I do that? I've searched around but couldn't find any tutorials about triggers in general and differences between them. If you could post me a link I'd be most grateful. When making beams in walls and door frames (doorjambs) should I make a block with that invisible and impassable texture to smooth out walls to prevent players from getting stuck? It seems like a huge time-waster, when in map development do you want to do this (if at all)? Thanks!