I have created the template: add icon. Directly on the inside I have the icon cavalryriflemen.

Which is the cavalry riflemen with out the Thompson icon. So, it should be as simple as labeling the path:
Modicons_dc6e9689bdc942e1a823be3b1d9791a9_cavalryriflemen
PropertyBagGroupPack: dc6e9689bdc942e1a823be3b1d9791a9
File path C:\Doctines Plus Balance\data\ui\cavalryriflemen.png
Template" Add Icon Path Set to C:\Doctines Plus Balance\data\ui
The files are .png
There is something I must have done wrong but I can not figure it out.