Additional Payment Term: Cash Discount Percentage Rate

Hi SAP Experts.

It is possible to add an additional payment term Cash Discount Percentage Rate

As a customer request, a third percentage entry is requested

I think this is not possible

However I would like to know whether is a solution to cover this requirement?

Within the 30 days - 5%

Within the 45 days - 3.5%

Within the 60 days - 2 %

Within the 90 days - 0%

Thanks in advance for your help