Light Control For Workbench is a Blender add-on that controls the direction of viewport shadows in the Workbench render engine. Direction is set through two parameters: Azimuth, which sets the angle from north (the Y axis) in a clockwise direction, and Elevation, which sets the angle from the horizon to the top. A Show Shadows toggle activates the viewport shadows, and a North Offset parameter sets the true north offset in the project.
Beyond direction, the add-on lets you save your own preset configuration, so a shadow setup can be stored and reused. Its parameters are animatable, which makes the controls usable when rendering animations. Settings are controlled directly within Blender.
The add-on is published by MST ARQUITECTURA and distributed under the GPL license, with support listed for Blender versions 3.0 through 4.1. A demo video is available.