First things first. To make the moon of planet 3 follow it around on its yearly journey around the sun, we need to connect it. We don't need to connect the moon, we need to connect the path. That's because we want the moon to go AROUND the planet on the circular path, but we want the orbit to change and go the same direction as the planet is. Hmm.
Use the SELECT AND LINK tool. First, select the ORBIT of the moon (here shown in white),
hold down the left mouse button, and DRAG onto the planet, and let go. The planet will flash white once, briefly. This will indicate it is now the parent in a link. The orbit is now the child. To see the effect of this, press play. The moon goes around the orbit, which follows the planet. Making a little more sense now?
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