"Attach link to file ..." Grayed-out
                    I'm in an item under a Collection within a Group Library.  I want to attach a file to that item.  I right-click, select Add Attachment and see the choice "Attach link to file .." which is, however, grayed-out and not accessible.  How do I fix that, please.
Thanks very much.
                            Thanks very much.
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 Upgrade Storage
 Upgrade Storage
If you you do need a file attached, use "attach stored copy of file"
(The settings are under "Manage Members" and "Manage Library" respectively on the group's page on zotero.org)
@adamsmith I have the same problem.
Only 'attach link to URI' is active, but I am the owner of the group ... do you have an idea why?
Thanks in advance.