I prefer to keep it clean, I want to recreate all of portal's chambers with the new content.
So what program do I use to make a Portal 2 map like you did?
I can't find Portal 2 in the drop down list in Hammer. D:...and yes I do have Portal 2...
http://www.youtube.com/watch?v=DAkool kids klubShGluElinked_portal_door ftw!
My Portal 2 SDK won't open D: