Delete zeros from SAP BPC 11.1 Standard Model

My system is SAP BPC 11.1 Standard Model, In this version doesn´t exist any optimizations.

My model is aDSO. Do you know how to delete the data in aDSO from the back? I need to delete the zeros, and with the se38 and a small program I can´t, it tells me that it is in a planning mode. I'm looking for something to be able to mark and select to erase, as was done in the rsa1.

Thank you!