Access horizontal stem value in side-bearing forumlas?

Often I find myself wanting to do something like this in my sidebearing arithmetic:


It is certain possible to do this manually (=|n-60), but it’s unideal to use “magic numbers” like that, should they change. If the stem values are definied for a given master, is there any way to access this value? And if not, I would like to suggest it as a feature :slight_smile:

What exactly are you trying to do?