BPC 10 - Install environment with 2 application servers

Hello experts,

We'd like to install a production environnent with multiple application servers.

Our target architecture is a cluster running all SQL services and 2 application servers running BPC services for the same environment.

I don't know how I can add another application server to the first one, during the installation the setup is creating appserver DB and in that case it will already exist.

Thanks for your help,

Sacha C.