u/sdoca

I installed Collabora for Android on my GrahpeneOS phone. I also use Proton Drive for my cloud storage/device sync.

I can open a file from my Proton Drive in Collabora (.ods) and I can edit it but the changes are not saved to the file. I can't find a user guide but based on other posts I believe that the changes should be saved automatically when the file is closed. If this isn't the case, how are changes saved?

I've set the file to be available offline in Proton Drive and I can't find any file permission settings that may be an issue.

Any suggestions on what I'm doing wrong?

I know most posts on this forum are about making music with AI but I'm hoping there's an AI tool that can help me create a rehearsal track for a choral piece with orchestra.

I found many tools that will isolate all voices from the instruments, but what I'm hoping exists is something that can isolate one of the vocal parts (e.g. soprano) from the others (alto, tenor, bass). Ideally, it would leave the other voices in but lower them so that the chosen voice is predominant but I'd be happy with stripping out the other voices as well.

Anybody know if something like that exists?