[FUNC] SaveProj DN - pattern manager for Digitone

[bibenu]

@Blasted_pingin

We are left to rely on third party developers who have to work without any support from Elektron.

The reason I mentioned elk-herd, was because @mzero IS, I understand, getting some help from elektron. But I also appreciate the more general point you’re making.

@mzero

I expect the technical info I need from Elektron in the next few days