I'm attempting to install Lutron Maestro (no neutral required) It has 4 wires, 2 black, 1 green and 1 bare.
The switch which needs to be replaced has 3 wires attached that come from the wall: green and 2 black ones.
1 Black wire ends around the screw on the switch, but the green and the second black wire both go around the screw and continue into the next switch where they end.
It is beyond me how to attach those "continuing" wires to the wires on my new Lutron switch.
DRAWING CORRECTION: On lutron sensor the pictured white wire is actually silver bare wire. (per instructions on Lutron the green and the bare should be combined before attaching to ground in box)