Why there are 2 switches on the shelly 1L

Hello,

I was thinking to pre-order some Shelly 1L ( i got no neutral on the switches) . I couldn't find Shelly1L thread so il ask here : why there are 2 switches connectors on the Shelly1/L since they are 1 channel only ?

What does the 2nd switch do?

Thanks in advance!

Ok, i got it now, thank you