GetROProperty to store any values of any objects in the popup window to variables.
DataTable.Value("columname", dtGlobalSheet) = YourVariable will store it in the datatable.
Just remember that it is not stored permanently. It goes away when the test run ends. You can view the datatalbe in the test results window to see what was stored there. If you need it to be more permanent, add the code to your script to export the datatable to excel at runtime so you won't lose it.