Moving passwords into family group

I've imported all my 1Password info into Passwords successfully. Now I want to share all of them with my wife, since we we sharing everything in 1Password. But after I've set up a group in Passwords with her, it seems to ask me to pick items to share one by one, ie there doesn't seem to be a way to simply share all if that's what I want to do as opposed to sharing a limited subset. I get that she can import the current items just as I did, but then changes won't be synced.

What am I missing? Thanks