Switch over to second login window

[Firefox]

Hello,
i am using Keepass for let start and login automatic to a third party windows application.
Everything works well, but the meant application is opening a second window for enter the login-password.
I have already saved in Keepass the path, where the application exe ist stored. Keepass is able to start this application, but does not.AutoType the password in the second login-window automatically. But if i select the already opened Keepass page for this app and press AutoType, then Keepass fill the second app-page automatically.
My question: How i have to configure Keepass for recognize the "second app page" automatically and fill the password, without doing this manually?

Hopefully you understand my request.

Thank you for help

[Paul]

KeePass has no ability to fill in anything automatically, you must tell it to start filling in manually.

cheers, Paul