Hello,
If you run MRP at MRP Controller level with user exit M61X0001 it will plan the multilevel through MD01 if you have same MRP controller for all the materials as user exit for a total planning run.
In the total planning run, you can exclude individual materials from planning using a user exit. SAP Note 208025 and the documentation for enhancement M61X0001 (transaction SMOD) contain further information about this.
Best Regards,
R.Brahmankar