Budget values to PPM Financial Planning

Hello,

I am trying configure Financial Planning Settings in PPM (mapping Financial View to Cost elements in PS/FICO) to bring the Budget (Value type 41) to PPM.

The options in IMG to map are - Cost element/Cost Element Group, Cost Center/Cost Center Group, Activity Type.

From what I am reading Budgeting is not possible in PS (standard) at Cost element level.

I do not think Cost Center Budgeting is done in my landscape, and I do not have enough information on this to evaluate if this is even an option.

So I am wondering out of the 3 options above, what is generally used for completing this configuration mapping to bring the Budget values to PPM?

Thanks