Is it possible to define sub-columns (i.e. Nested Tables) in a Dashbuilder table ?

Issue

• Is it possible to define sub-columns (i.e. Nested Tables) in a Dashbuilder table of BPMS 6.0.x ?
• As a practical use case , suppose a table named Process Status displays the current Status of a BPMN2 Process, Start Date , End Date and Node1, Node2, .... Now, the process could contain sub-processes internally. Hence, the Node columns should also need to display the similar information (Status, Start Date, End Date, Node1, Node2, ...) of a sub-column under those NodeX which are representing sub-processes. Is it feasible to create such sub-columns in BPMS 6.0.x ?