How do I specify what session class is created when using the Create Session Node?

In the ShooterGame Example, it has a custom Session class, with a bunch of session related variables in it.
I would like to do the same for my game but currently I implement creation, searching, ect of sessions purely by blueprint in UMG widget blueprint panels.
The Create Session node does not have a session input, so I was wondering if there is currently a way to tell it what class of Session to create?

In ShooterGameMode.cpp

/** Returns game session class to use */
TSubclassOf AShooterGameMode::GetGameSessionClass() const
return AShooterGameSession::StaticClass();