CAS datasets are on the CAS file system. Datasets in memory are not listed.
To see the datasets on the CAS server that you want to import, use CAS Get Data Sets() after you connect to the server.
The following example shows how to list datasets that are only in casuser:
datasets = CAS Get Data Sets( casuser ); // quote the argument
Show( datasets );
The following example shows how to lists datasets that you have permissions to view:
datasets = CAS Get Data Sets();
Show( datasets );