Question on how to create a custom template for Pathfinder game
 

I have a question. I've been using Herolab for a while now and started playing around with creating custom items in it. Races are generally easy and I haven't tried with a class yet but I am running into an issue with a template.

Basically I need to create an acquired template for a character to be possessed by a demon. The demon possession gives boosts to the characters physical stats but since the demon is the on in control of the body it should replace the characters mental stats with the demons. The problem is I have not been able to find any examples of templates that do this or figure out how to make it work in Herolab.

Note: this is for a Pathfinder 1st edition game