partitioning cluster cdcls

Hello Forum

has anybody ever succeeded in changing CDCLS or another cluster tablespace to partition-by-growth ? After our first test with a "normal" tablespace we tried to convert CDCLS with SE14. The problem is that after changing the storage parameters there is no possibility to "force the conversion" by going to the EXTRA button. CDCLS is our biggest tablespace in production which really needs to be converted before reaching 64GB limit. SAP BASIS 7.00 level 20.

Best regards

Martin Ketterer