Some of the control units (NOT ALL) have their own "slave" blocks. These "slave" blocks are the subsystems (like example: the control unit 09 have rain sensor as the subsystem. It depends on what subsystems control unit have). To access this function follow the instructions:
Press the button
to open control units list.
Select the needed control unit by
tapping on it.
the subsystem from displayed ones.
the subsystem block is opened. The name of subsystem is displayed beside of original control unit name (there are two options for this block as a "Info" and "Long Coding", the variety of appeared functions depend on the block)
button to open the information of subsystem block.
button to open the long coding of subsystem block.