I’m not familiar with Toolset, but it does sound similar to Advanced Custom Fields (ACF).
Quite a few plugins still require integration with PP. You can integrate Toolset, but you would need to know how to do it properly with Toolset’s methods, as well as finding the location of the correct file(s) to make the change(s) within the theme.
Not much help with Toolset, but I can help you with finding the file(s) to make the change.
Note: Other than being a customer, like yourself, I am not affiliated with PP.