I assume you are using the Windows version (C-ComWP):
If you look in the pulldown menus, go to FILE and then DASHBOARD SETUP. Select the dashboard you wish to modify and select from the available sensors (shown on the left) to add to the sensors used in that particular dashboard (shown on the right.) Take a look in the help files also, as this is explained there as well. You can get to the online help menu by pressing the F1 key while C-ComWP is running.