The list of the optional modules installed on the panel can be reached from the System Settings rotating menu, by selecting the "Plug-in List" voice.
The Plug-in List is available both in System Settings in User mode (reachable from context menu from Runtime) and System Settings in System mode (reachable with tap-tap procedure at startup)
Selecting the Plug-in List voice into the rotating menu the list of installed optional module will be displayed on the right part of the screen.
See image below as reference.
JMobile eTOP400 and eTOP500 Series operator panels