How can I show 1Password in all browser windows?

A while back, 1Password invited me to add its icon to Safari so I could use it without going to the app each time. It works great, with one exception: I use multiple browser windows depending on whether I'm checking Social Media, Finances, Shopping, and so on. And what I've found is that 1Password gladly added the extension to one Safari window, but I can find no way to add it to other Safari topical windows. So I'm stuck with just accessing 1Password in a single window, but for all others, I have to visit the app.

Also, an apparent by-product of adding the 1P extension to Safari is that it also removed the shortcut from my Mac's menubar. It's really not nice for software to force me into these power struggles. Thanks for any help.