how to post all condition values to a single gl ac as a single line item

Dear Experts,

I have 4 conditions zpr1, zpr2, zpr3, zpr4 with  the same acount key erl going to the same gl ac. This is posting as four different line items,  But my client wants the total of all condition values to post as a single item in to Gl ac. Please do suggest.

Regards

yezdevan