Quite simple really!
Switch in Bedinung: when 1 - 5 must stand up well to the sockets 1-5 stand up!
If all stand up and example 3 below, it must also be set up at the outlets!
Then you can turn the first on A, the second to B and C on the third at the individual outlets.
The other letters should always stand below!
Already one can A on and off switch, as well as B and C separately.
Concomitant use is possible only with a maximum of two sockets!
Am very satisfied! Buy recommendation!