Shield a certain property in a package from package updates

I have a few packages that I will be using a lot, but there’s a few properties in this package that I would like to be able to change without having to “break” the package link or have the orange ! icon showing. Specifically,
image
I need the value of “main” here to be changeable, and also put multiple values in Links, while still allowing the other properties of the package to Auto-Update. Is there any way to do this?

I’d recommend using attributes, AFAIK they don’t count as a package modification like the location of models