In the App:

Simply click on the device name in the Devices Pane, as shown below:

The selected device will be displayed in Bold letters and the icon will appear larger on the Map and will be centered on the Map.

Tip: Use the grey UP arrow at the top of the Devices pane to Open the Device Pane if it is closed!

On the Website:

You can click on the Device name as with the App, or click directly on the device icon on the Map.

Tip! to re-centre a device you can click on a different device and click back and the device will re-centre on the Map.