Hello Nazarene,
Obviously the scheduling parameters being at the plan level (not at the item level), your requirement is not possible through standard functionalities. A simple solution is to have different plans. But if we want to have the desired effect in a single plan, then it will be a research work. You have to go through strategy based plans and offsets etc. If something there is not working then you may have to take help of user exit IPRM0005. Also your ABAPer can try whether the user-exit IPRM0002 works for your present situation by giving a logic to offset calls for different items.
Regards
KJogeswaraRao
