[itsme]

I take ChordPro files I want to share from the file system. I often edit them there, they also contain changes made with MSPs text editor (but not MSP annotations).

Regarding chord grids there are two options:

Use something like
[|] [F] [Dm] [|] [Gm] [C] [|] 
instead of chord grids
pro: can be transposed within MSP, is compatible with almost any ChordPro program
con: measure bars are not aligned

or use the ChordPro reference implementation from https://github.com/ChordPro/chordpro/releases/ to create PDFs
pro: you can use all the new fancy features like chord grid, Pango formatting, ABC integration
con: transposing in MSP is not possible, it requires transposing in the ChordPro program, creating a new PDF and importing that into MSP