You can go configuration page by clicking on a device. You will see the pages below;
Information tab contains some basic information and you can control devices with regards to the command classes here. Also you can view the information from metering values to notifications with regards to command classes again.
You can set the configuration values for the device here in this tab. After you made all the changes for the configuration you will click "save changes" button.
You can view and associate the device(s) with the groups of Z-Wave device. After you have finished association, you will "save changes" to get it affected
In the last tab you will see detail information with regards to command classes. You can also;
"Update device" : Which retrieves and set all the required data about the device again which is done at first.
"Remove failed device": Some devices can not be removed due to the some reasons. At that time this device can be removed by "Remove failed device" button
"Check node": Check if the device is alive or not