Enhancement that allows Practitioners to use Gather as a workpaper tool

Would love to see an enhancement where the files are uploaded, and I, as the tax preparer, can edit, annotate, and make notes as well as sign off on documents. It would be TicTie mixed with SafeSend Gather so that SafeSend is my one stop shop rather than locally saved PDFs. 

It will increase firm buy-in so that everything runs through Gather, because we are in the tool for every 1040 return. This system likely wouldn't work well with complex entities.