Patching an item
 

I want to make a different version of an item, but was trying to figure out if you can patch an item rather than preclude it.

I had thought I had seen something about this on here, but can not find the post at all.

For example in my campaign I have different prices for ceratin weapons, rather than remake each weapon, I just want to be able to patch them.

That sounds more like you want replace than preclude.

I want to modified version to "Replace" the original, without causing issue for people that might be missing a book in Hero Lab. A couple players do not have the same books as me and if I am precluding the original vs my version that might think it requires another book, it might cause problems.

I also want to make sure the original is still available if the source I am working with is not selected.

If that is the way replace works I just need to actually get an example of it in the works to get a better feel for it.