Save curves for brush printing

[PaRunk]

In the Contour window you can change and save the curve for the print. But when I open a new document, my previously created profiles are no longer available.

What am I doing wrong?

I put a lot of effort into creating different curves there, which I would like to use in all other work. Especially when I work with the pencil.

If I put them down as brush tips, these curves would be saved, but at the same time the strength is also saved and I have to reset the strength each time to continue working. Or I would have to create a lot of brush tips with different sizes and the different pressure profiles. That would be a lot, because I change the strength very often.