Where is the Fire/Secondary button mapped to?

[Richard B]

On games such as Black Rose that use a secondary "fire" button that's different from the plunger button, what would that be mapped to under controls?

 

[Naildriver74]

On games such as Black Rose that use a secondary "fire" button that's different from the plunger button, what would that be mapped to under controls?

On the keyboard it's the right flipper