Able to add a PDF to an "Update-new comment"

—It would be great to be able to add a PDF to an Update "new comment".

—When we are updating teammates we have a lot of pdfs we work with as a multi-page file that we find it valuable to add the the "new comment" in Updates so support what we are explaining.

—It would be beneficial to be able to add a pdf as well. Right now only pdfs can be added to Documents or as Proofs.

—Currently only jpgs, pngs, gifs can be added to an Update comment.