Left click: selects the quadri underneath Left-press + Drag a quadri: to move it Right click: adjusts the closest quadri corner onto the center of the haircross
UP-DOWN-LEFT-RIGHT arrows: moves the haircross with precision SPACE: adjusts the closest quadri corner onto the center of the haircross F1-F2-F3: select the 1st, 2nd, 3rd, etc quadri Control-N: creates a new quadri Control-S: Validates the current image cut Control-UP: reorders the selected quadri Control-DOWN: reorders the selected quadri