This is probably a simple question for most but I'll ask it anyway -

I have a script that refers to a form in another mod. Since the index of that .esp changes per user, commands like GetFromFromFIle won't work. I know you can't normally have an esp use a file from another esp because of this so I'm wondering if there's a workaround.

Surely there are mods out there that refer to forms in supporting or complimentary mods. How do they do it?

Thanks in advance