As far as I know, editing items in Workspaces is not available yet. I seem to remember it being something that would come out towards the end of this year.
If you have Service Desk, there are some things that you can do around editing.
I though there were somethings that could be edited. Even the Software catalog. When I check the Dev tools I get this error which may be causeing the issue. I am using the the account I log in with LDMS.
Failed to load resource: the server responded with a status of 401 (Unauthorized)