SAP HANA Cloud HDI Edit Table using SQL

Hi.

I'm trying to delete a table using SQL in a HDI Container.
I've tried it with following Users:
DBADMIN
*_RT
*_DT
HDI Admin
Group Admin
Container Admin
User that's assigned to the schema.

None had the necessary privileges.
The same happens when I try to rename a column. Noone has privileges for that.

How can i assign the necessary privileges?

I know you can edit the tables using CAP but I don't have access to that.

Best regards

Robin