One Service PO with one line item - for same services in different PR

Dear All,

I have created service PR by adding external activity for Network activity. Now for say 10 different activity, I have created 10 different service PR with same service number.

Question is can I make One Service PR instead of 10 separate PRs ?

Currently PRs are created as below -

WBS 1 - PR1 - Serv1 - Qty 10

WBS 2 - PR2 - Serv1 - Qty 20

WBS 3 - PR3 - Serv1 - Qty 30

I want One PR with One line item - and above quantities to be bifurcated at Services tab in Service PR with respective account assignment.

PR1/ line10

Serv1 - Qty 10 - WBS1

Serv1 - Qty 20 - WBS2

Serv1 - Qty 30 - WBS3

Can any one guide how to achieve this or any work around to be done.

Regards,

Rakesh