On the tablespace usage screen (for DMS tablespaces) under the space usage tab, the application now does show indexes, but no values in Total MB or Used MB for indexes. It does show number of keys and key size just never calculates out the totals. All totals are 0.00.
Waiting for fix to be released in a future version of Toad for DB2.
Issue occurs if table and index are placed in different spaces.