Lastpass should have a generate new password button when editing a vault entry.
Scenario: I am in a incognito window to avoid issues with Microsoft o365 auto-authentication. When I log into the site I need to connect to, and go to change the password, Lastpass plugin is not enabled on that screen (due to the incognito mode). I open my app on my PC and I cannot ask for Lastpass to generate a new password in the app.