This template explains to you how to "ban" the usage of 2 skill at the same time.
This can be useful if you are making a skill tree that has the compatibility problem with vanilla skill or you just want to balance your 3 different tier 4 skill by allowing only one of them.
To use this code just "thanks" in the code will be appreciated.
For the example template, I'm using my own Sentry rework the files you have to check are menu.lua and skilltreeguinnew.lua