Current questions and answers regarding the map editor.

How do you rotate heroes, units, and resources in any direction?

Select the object, press R, and the object will rotate 90 degrees with each press. To rotate to an arbitrary angle, select the object, hold down Ctrl, and click on the cell in the direction you want the object to be rotated. However, you need to be very careful with the second method; it is only suitable for single-cell objects.