Multi Resource Planning In PP/DS

HI ,

To create Feasible Production plan in APO , you have to consider the Alternative PPMs during production planning Run

Alternatives PPMs it means Extra available capacity

How I let the system see this available capacity ?? and how I can utilize the alternatives PPMs ??

I know the Heuristic SAP_REM_02 has a lot or restriction and I try with it and not working , is there any heuristic can do this or I should work the  PP/DS optimizer , if optimizer what setting should I have it to achieve my requirement ?

Regards

Rami