Running subroutine from another build
 

How can I run subroutine from another build?

I have some builds and in every build there is the same subroutine. I want to save this subroutine in the separate file and run it from this file.

If no, can you add this functionality to the future version?

One way to do this is making your subroutine a global subroutine. Then it is available to every build.