How do I connect HS200 for a multi-switch setup? I connected black of the old switch to one of the black wires on HS200, and the black+red from the old to the other black on HS200. And the white of HS200 to the few whites in the box.

BTW, the 2 black wires on HS200 are not marked which is the line and which is the load, becuase it only works one way.

It sort of works.. I have 2 switches controlling same light. I can turn on from either HS200 or the other switch biut can turn off only from HS200; the other switch does not turn off the light, it only flickers off momentarily and it stays on, which is a bit of a problem.

Technical support was useless, they didn't even recognize their own product in the pictures I sent :-(

Any help is apreciarted, thanks!