Not a single improvement to guitar notation?

I think if you want this to display for Fmin7 you’ll need to create the shape at the first fret rather than the third - shapes are allowed to move up the fretboard but not down. I believe this is deliberate, presumably because some shapes only become playable further up the neck where the frets are closer together.

As to the shapes with a barré next to a different finger, that won’t work currently, no. I’ll make a note of this.