ESCAPE - close editor and return to game
WASDQE - move camera
SHIFT+ARROWS - turn camera
RIGHT CLICK/SPACE - mouselook
J - toggle editor sound preview
CTRL+Z - undo

CLICK - select a surface
SHIFT - multi select
DELETE - delete
F - flip selected wall(s)
ARROWS - translate selection
,/. - move floor/ceiling up or down
CTRL+CLICK - start drawing
CLICK AGAIN - add a point to ur drawing
! you dont need to keep holding control !
ESCAPE - cancel drawing
ENTER - finish drawing
CLICK FIRST POINT - close and build sector
I - create a harbinger
O - draw a zone
SHIFT CLICK IN TEXTURE BROWSER - pin texture to the top
REALLY DO THAT?