Hi Sergio, I'm not sure if I got you right. In dashboards you can define a data source/module per visualization (independed of the dashboard tab). For a visualization you may set up a drill-through to another dashboard or a report. Hope it helps.
https://www.ibm.com/docs/en/cognos-analytics/11.2.0?topic=started-sources-data
https://www.ibm.com/docs/en/cognos-analytics/11.2.0?topic=report-adding-drill-through-definition
------------------------------
Philipp Hornung
Business Intelligence Manager
Techniker Krankenkasse
Hamburg Germany
#IBMChampion
------------------------------