P6 Export of estimated weight and user cost in WBS level

Dear all,

In WBS page we have the Estimated Weight and User Cost for each WBS i try to change these values using any tools but i failed also try to export them in excel but also failed.

i try to add different weights like Cost weight, Equipment weight,...etc and the percent weight for each is different and i have alto of WBS i can not change each time the weight manually to each WBS.

is there any way to solve this problem.

thanks