I'm aware of most of your feelings about Modeller, but thought I'd ask anyway...
After dragging the new Dimension to the Cube and selecting the first option to "Place all of the data in one member of DIMENSION" and also "Clear all the Data".
I get the following error:
Anyone know what that could be? I'm the only user on the Service so assuming that no one else has been able to lock anything up.java.lang.RuntimeException: com.cognos.pmta.api.exceptions.TM1APIException: com.ibm.cognos.tm1.TM1Exception: Attempt to update a non-updatable cell