CJ20N : assigning different Person Responsible for each wbs element while releasing wbs

Greetings Experts,

In our business scenario it is required to incorporate different Person Responsible for individual wbs elements while releasing depending on the nature of work. Currently single person responsible can be assigned while releasing the wbs.

I understand that Validation rules guide the system here, what changes are to be made?

Please guide as to how this can be done.

Regards

Mazal