We need to be able to select 'custom payment type' with $0.00 as the total.

Currently, the only way to get to 'custom' or 'other' payment type is to enter a dollar amount.

When we have Groupon customers (or Cherry or other) we do not know the exact $ amount at checkout.

It depends on the fee and sales and other factors by the 3rd party.
BUT not having the access to the 'other' payment option with a zero dollar total makes all these transactions hard to track.

We need to be able to select custom payment options so we can track them in our reports, EOM.

The 'total sale' for the procedure should not (and does not) matter. We need to track "direct pay w CC vs Groupon vs 'other'" and this prohibits that.

Please add this as a feature.