Can more than 1 customer-defined total box transfer to the payment tool?

You may use different calculation methods or multiple calculation widgets using conditions. However, the payment field can only read only calculation widget. You may pass the final value based on the conditions to the final calculation widget that will be read by the payment field.

For example, Calc A, Calc B are the final customer defined final values, you may pass one of these final values to Calc C by using conditions so that it can be passed to the payment field.

Hope this information helps!