IdeaPlace has only one data model, which we source for the customer, and customers can create reports from this that are saved in their workspace. At this time all users are able to view these reports. There is no custom modeling for IdeaPlace on the service itself.
Customers can do "mash ups" with other tools from within Power BI Desktop and then deploy to Powerbi.com if they have the licensing there.
IdeaPlace does not support blending of data from other systems from within the IdeaPlace application and workflow.
▲ Power BI - Data Source Options