Pre-Auth - Optional But not required

A way to configure pre-auth so that it does not pop up when starting a tab, but still have the custom button to apply a pre-auth if desired.

Site does not want to pre-auth for every customer every time, only on specific nights when they have a band playing and don't know the customer by name.

If pre-Auth is enabled I can set a custom button, but it still pops up on every new tab.

If pre-Auth is NOT enabled you cannot set a custom button