How to link a switch to lights

Wherelight or switch windowElectrics block

Steps

Select a light and in the Switch field choose which switch turns it on. For a pass-through one you can choose Second switch: the light is controlled from two places.
Or select a switch: it shows how many lights it turns on, and Link the room’s lights will connect it to all the lights in its room that do not have a switch yet.

What is important to know

The link is drawn as a link line (the same one you draw with the cable tool): an arc from the switch to the light. It is visible on the plan in the Electrics tab and on the album sheet Lighting and switches.
The window also recognizes a link line drawn by hand: a choice in the field and a hand-drawn line mean the same thing. Changing the switch does not remove the light’s links to a sensor or another light.