Assign Weights to Entire Activity & WBS Summary Level

hi to all,

Here i am wondering a way to assign weights to my entire activities as well as WBS level.

My schedule is loaded with Man-hours but now my Client asking to show the weight on the schedule.

I have checked in P6 & there is no any default column i found where i am able to show the weights, but i guess by the help of UDF we can show those weightages.

any reply in regard will be highly appreciated.

Thanks in advance .... :)