Actions define how the geometry of a dynamic block reference will move or change when its grips are manipulated.
In general, you associate an action with a parameter and the following:
When you move the grip in the example above, only the geometry in the selection set is stretched.
Distance multiplier and angle offset override properties allow you to specify a factor by which a parameter value is increased or decreased.
Action overrides are properties of actions that have no effect on the block reference until it is manipulated in a drawing. Use distance multiplier overrides with the following actions:
You can specify these action override properties on the command line when you add an action to a dynamic block definition. You can also specify these properties in the Properties palette when you select an action in the Block Editor.