Hi Jinho,
Using an Empty grid area, you can add the Esri Maps for MicroStrategy widget, and add any number of datasets in your dashboard, as layers on the map. Once the layers are added and the map is saved, any Selector or Configured links configured in the grids of the datasets on the map can be selected to using Selection tools in V1.1 to trigger these interactions, in V1.1 the actions on the first layer are active by default, all additional layer actions are accessible in the select tool by clicking more and viewing the Links and selectors tool button, here you can choose which layer actions you would like to trigger.
Check these links for more information on using Selectors and links on the map.
Configure and use selectors—Esri Maps for MicroStrategy (v1.1 Archive) | Location Analytics
Configure and use links—Esri Maps for MicroStrategy (v1.1 Archive) | Location Analytics
For more advanced selection tool our new release, Esri Maps for MicroStrategy V2.0:
http://blogs.esri.com/esri/arcgis/2014/12/03/esri-maps-for-microstrategy-2-0-released/