Setting the Data Sources Setting your data sources allows you to use the Demographic/Location Analysis menu. In the Trapeze4 Workstation, click Tools > System Properties. The Properties dialog box appears. On the Profile tab, click PLAN Settings > Demographic Data > Data Source Name. In the Data source name list, click your data source. To set your location data source, click PLAN Settings > Location Analysis Data > Data Source Name. In the Data source name list, click your data source. Click Apply. Click OK.