Portal 2 Puzzle Maker/Shortcuts
+ - Pull selected surfaces, Fill selected volumes.
- - Push selected surfaces, Carve selected volumes.
P - Change portalability of selected surfaces and volumes. O - Invert portalability of selected surfaces and volumes.
K - Connect to... Must have a single selected item.
F9 - Rebuild and view puzzle.
Tab - Switch to game view (If you have made edits you will still have to rebuild).
A - Pan left.
D - Pan right.
Q - Rotate camera left.
E - Rotate camera right.
S - Zoom out.
W - Zoom in.