How to add devices from Central?

A device cannot be added directly into the central server, but you can always choose a probe specific view in the central server and add the device. To choose a particular probe, please select the probe name from the probe selection dropdown given on top of the page (refer the image given below).
"All Probes" option can be selected to access the collective view of Central server and all the other options will provide you with the specific view of that particular probe. You may also choose to log in to a probe directly, to do so, you can either use the probe server URL directly into your web browser or you can click on the probe name given under Settings > Probe Details page.