This function helps you move the map image relative to the Condes coordinate system.
It is located in the Canvas / Move map… menu.
Assume that you have worked on an event, and you have now got a new version of the map, whose coordinates are slightly different than the old version of the map. If you link the new map to the existing event, the controls are no longer at the right locations on the map.
This problem can be alleviated by moving the map image, and this function can help you do that.
It is important to remember that you move the map only. The controls should NOT be moved. They should stay in place. Think of it as moving the map "to" the controls.