The user can create a force entity as follows.
• Point
• Point: Selects a point on two bodies to define the location of bushing force.
• Body, Body, Point
• Body: Selects a base body of bushing force.
• Body: Selects an action body of bushing force.
• Point: Selects a point to define the location of bushing force.
• Body, Body, Point, Direction
• Body: Selects a base body of bushing force.
• Body: Selects an action body of bushing force.
• Point: Selects a point to define the location of bushing force.
• Direction: Defines the direction of z-axis for two markers.