The user can create a force entity as follows.
•Point, Point, Point, Point
•Point: Selects a point on a base body.
•Point: Selects a point on a first action body.
•Point: Selects a point on a second action body.
•Point: Selects a point on a third action body.
•Body, Body, Body, Body, Point, Point, Point, Point
•Body: Selects a base body of plate force.
•Body: Selects a first action body of plate force.
•Body: Selects a second action body of plate force.
•Body: Selects a third action body of plate force.
•Point: Selects a point on a base body.
•Point: Selects a point on a first action body.
•Point: Selects a point on a second action body.
•Point: Selects a point on a third action body.