Cinema 4D / BodyPaint 3D Program Documentation Reference Cinema 4D Cinema 4D Prime Select Menu
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

Grow Selection

With this command you can add to a selection. All adjacent points, edges or polygons (depending on which mode you are in) are added to the current selection.

At left the initial selection, right after the Grow Selection command has been executed.