Transformation -> Class XXX contains stored procedures which cannot be changed in SAP GUI

Hello all,

I started development in SAP BW Hana. I'm trying to create one transformation with "SAP HANA Expert Script" but when I try edit the class standard to input sql script is return the message  "Class XXX contains stored procedures which cannot be changed in SAP GUI".

Message "Class XXX contains stored procedures which cannot be changed in SAP GUI"

Then, I opened the SAP HANA Studio and tried to edit class but I have that register object in sap service.

Could anyone helpme? Previously Icouldgenerate thesqlscriptin theSAPGUI, but now it isno longer possible

Thanks a lot,