open stored documents read-only

[jschrot]

To prevent accidental changes to documents (e.g. Word-documents) stored in UR I would like to have the link "click here to open stored document" replaced by two links:
"click here to open stored document read-only" (or "click here to view stored document") and "click here to open stored document writable" (or "click here to edit stored document") so that I can choose whether I just want to view a document or want to edit it.
(MyInfo has this option.)