Paste URL + ADD: place image
Drag: move (snaps to grid)
Corner dots: resize
Top dot: rotate
SPAWN tool: place spawn
DELETE tool: click to remove
Del: remove selected
Ctrl+D: duplicate
Ctrl+S: save map
GRID: toggle grid lines
SNAP: toggle snap-to-grid
EDGES: toggle image bounds
COL: toggle collision boxes
SHIFT+DRAG: pan camera
CENTER: center camera on map middle
PREVIEW: show in-game viewport
PREV/NEXT: jump camera to spawn
ADD COL: add collision to selected