macOS, 1Password 7, try this: Hit Cmd+Alt+\ and try to tab to the Generate Password button in the top right of that window that pops up. This was possible in earlier 1Password, isn't now. Tabbing moves you between the left pane list of suggestions etc. and the right pane. If there's something in the right pane, you can arrow through them, there's no way to get to the Generate Password button without taking your hands off the keyboard.
Additionally, now when I do generate a password, it saves that password in my shared vault for all the world to see instead of defaulting to a private vault where only I can see it. It doesn't appear to be possible to tell it where to save that password until it becomes a login, but by that point 1Password has already leaked the password I just generated. That seems like a really terrible default, and the only way I've found around this so far is to try to remember to open the main app, go into my shared vault and delete the password that I never wanted saved in there in the first place.
Additionally, now when I do generate a password, it saves that password in my shared vault for all the world to see instead of defaulting to a private vault where only I can see it. It doesn't appear to be possible to tell it where to save that password until it becomes a login, but by that point 1Password has already leaked the password I just generated. That seems like a really terrible default, and the only way I've found around this so far is to try to remember to open the main app, go into my shared vault and delete the password that I never wanted saved in there in the first place.