Hello!

I would like to use the "One time charge"-option with product-attributes but I would like this to be NEGATIVE: in case this attribute is checked, the "One time charge" is distracted, independently from the productamount (in fact, "One time discount", might be a better name).

However, when putting a "-" in front of this field, in the shopping-cart the price-attribute is set to 0.00.

So my question: a negative "One time charge" is not possible or am I doing something wrong?

Please give me some advice on this! Highly appreciated!

Regards,
-brt