First, you'll need to define an attribute named MOUNT in the part type. Then in Layout define a label on the decal's on the assembly drawing layer that show the value of the MOUNT attribute.
Thanks for the reply. This was also my idea. But how can i export the MOUNT property in the .asc file?
I can't find the MOUNT property in the decal attibute list
You'll need to define a new library attribute. It is easy to do between Logic and Layout; I'm not sure of the process for DxD.