Using custom .nsh files

I have a .nsh file I made with some macros and functions. I would like to put the file in a custom directory and use the macros and functions. How do I do that? Do I have to put the files in \NSIS\CustomSchedulePage in order to use them?

I think you mean NSIS\Include? No, you don't need to put them there per se:

Yea I meant Include. I was looking at the name of my file, haha. Thanks!