Wire: drag from a terminal dot to another connection point. Click a wire to select it, then press Delete.
Move: drag a component body. Switch: click the knob to open/close.
Delete: click a part to select it (blue glow), then press Delete.
Box-select: double-click empty space, then drag a box. Drag right = select parts fully inside; drag left = select anything the box touches. Then move them together or press Delete.
Pan: drag empty space (or hold Space). Zoom: pinch or scroll.
Jumper: click Jumper, then click terminal to terminal to chain a black jumper wire. Esc to finish.
24V DC: tie the PURPLE (common) wire to one DC terminal and a colour wire to the other to light that colour (a switch can gate it).
Warning: this is a 24V light — connecting any wire to 110–220V AC destroys it.
Tip: wire it up, then turn the source's knob ON to apply power.