How to add two Web_reg_param_save value and insert that value to new field

This is how my replay Looks like

Generate_Order_Images.c(121): Notify: Saving Parameter "pNamePlate_1 = Buick".
Generate_Order_Images.c(121): Notify: Saving Parameter "pBrandName_1 = Regal".
Generate_Order_Images.c(121): Notify: Saving Parameter "pNamePlate_2 = Cadillac".
Generate_Order_Images.c(121): Notify: SavingParameter "pBrandName_2 = XTS.".

 I want to  enter the  Buick/Regal to new field .

Kindly suggest what should be done.

Regards

Bigal prasai