I am trying to figure out how to change an analysis to orient toward magnetic north. I need to generate several 5 x 5 km boxes in a local UTM projection but with the orientation at magnetic north (not true north and not just rotating the angle of declination in a layout view). This is for flight line planning and and when I generate a box in UTM and bring it into our flight planning software the box shifts from the magnetic north display (and the direction the plane flies) to the true north that the box was created in. This is causing additional flight lines to be generated as the box is just slightly skewed. How can I change this?
Please, any suggestions would be helpful!