Combining the dummies from the L2 Structure category is simple. By using the Link Object feature of the physics control, the dummies can be combined together. The Link Object feature in the advanced panel is different from the Link feature for animation found in the modify panel to the right of your stage. In addition, you can use the Constraint >> Pick Target feature in the Constraint Settings panel (Shortcut: Shift + F10) to connect props in a different way.
In this section, you will learn how to compose a bulldozer by applying different dummies.