The Visualization palette allows you to edit the lights directly from the palette. Right click…
Vectorworks Tip #098 – Visualization – Spot Lights
Use spotlights to draw the eye of the viewer to the part of the scene you want them to focus on. Unlike the Directional light, the spot light has to be placed carefully so that it lights the area you want. Use the Object Info palette to control the intensity, pan, tilt and spread of the light.