[jeffn1]

I think the best you can do is create a box in the annotations editor with a white background (to cover up text in the document) so it covers the choir score. Then you can also use that space to write in notes/annotations.

I hope this helps.

Jeff

I would like to be able to show the piano score on a choir partitures, hiding the choir scores. For example, by marking the lines that should be hidden (or reversely, by marking the lines that should be displayed).

This is especially useful to display a compact piano excerpt with less page flips.

Frank.

Frank, MobileSheets is NO notation software - it displays pictures and pdfs scanned or possibly created by notation software.
So it does not know about scores and chords and voices...
I don't think that your requested feature will be available in near/medium future.