How to allow access to other side units for losses etc

What is the property setting that allows units to be manipulated by other side?

Example: Module has 2 sides - one French and one German. French player can only move or manipulate his own units. Ditto for German. What setting allows the other side to right click on units or move them if they are not their side?


Check the relevant units to see if they have a Restricted Access piece trait.

Will do thanks Joel