The Repel behavior lets you specify any object or objects (sources) that will force delegates to move away from them. This is basically the opposite of the Seek behavior. If you want delegates to back away from an object, as opposed to turning to face the direction they're moving, use Repel in conjunction with the Orientation behavior.
If you've selected multiple sources using Multiple Selection (see next item), the word "Multiple" appears on the button. To see which objects are designated as sources, click the Multiple Selection button.
Determines repel activity when the behavior uses multiple sources. The default choice is Closest Source Only.
Determines whether delegate direction as influenced by the behavior is calculated by an angular method or a force method. Default=Force.
The magnitude of the force is greatest when the delegate is moving directly towards the source, and needs to turn around. It can be as little as 0 when the delegate is moving directly away from the source.
Use the Radius settings to activate the Repel behavior only when the delegates are within a specific distance from the target. The relative strength of the force increases from 0 percent at the outer radius to 100 percent at the inner radius.
Shows the color used to draw the Repel force vector during the solution. Click the box to choose a different color. Default=violet.
Display Force When on, force exerted on the delegate(s) by the Repel behavior is drawn in the viewports as a vector during the simulation solution.