I support your request for basically making the "notes" field for 1Password entries into a field type, so you can have multiple ones.
Having said that, I admit I generally haven't missed them for the use case of SSH keys, even though I do occasionally store those in 1Password -- I use the Secure Notes feature for that. Copy the key to the clipboard with "cat ssh.key | pbcopy", make a new Secure Note, paste. I suppose it hadn't occurred to me to do anything else in part because, well, I can't -- but also because I don't think of these as username/password combinations, I think of them as "SSH for server foobar," and the search feature works perfectly well for that.
This is arguably a workaround instead of the ideal, but I actually use Secure Notes pretty frequently. WiFi base station passwords, recovery keys, personal access tokens, stuff that in general doesn't fit the "web site with username and password and possibly 2FA key" model I'm fairly sure I started this before 1Password even had a "Notes" field.
Having said that, I admit I generally haven't missed them for the use case of SSH keys, even though I do occasionally store those in 1Password -- I use the Secure Notes feature for that. Copy the key to the clipboard with "cat ssh.key | pbcopy", make a new Secure Note, paste. I suppose it hadn't occurred to me to do anything else in part because, well, I can't -- but also because I don't think of these as username/password combinations, I think of them as "SSH for server foobar," and the search feature works perfectly well for that.
This is arguably a workaround instead of the ideal, but I actually use Secure Notes pretty frequently. WiFi base station passwords, recovery keys, personal access tokens, stuff that in general doesn't fit the "web site with username and password and possibly 2FA key" model I'm fairly sure I started this before 1Password even had a "Notes" field.