How to disable Costing of Material Components into Planned total by default?

Hi,

We want to disable Material Components planned value addition into the Activity's and Project's Planned total.

If we plan a Material for an Activity, the Planned value reflects as follows:

Planned Material:

Activity's Planned Value (CTRL+F11):

Project Planned Value (as in S_ALR_87013532 and CJ31):

We want that just the Costs Activity's inserted Amount to be taken into consideration:

Right now, we see we can make this happen if we manually uncheck the "CostRel" (Relevancy to Costing) checkbox on the Material Component:

But we want that behavior to be taken by default.

Is there any costumizing/SPRO route that we can take to achieve this or something similar?

Thanks a lot for the help!!

Leo