as in the title, no way to do that. Is planned to have it? I can see the related/paired items, but cannot pair a new item.
Watching at the editing interface with more attention, I see "Add new file" in the "Related Items" section...this sound like
1Password Version: 7.7.BETA-5
Extension Version: Not Provided
OS Version: iOS 14 stable (18A373)
Sync Type: Not Provided