Then each client (in the bottom left or right panels) can select which address book instance to view by selecting it from their respective drop-down boxes.

The newborn stars form in the dense gas because of compression by the wind and radiation from a nearby massive star (located outside the field of view to the left).

The three boxes located on the left of each layer in the Layers view are used to control (from left to right) visibility of the layer, locking the layer, and selection.