We could have talked about mirroring objects a bit later. But we have seen so many transforming tools in this section that it can be the right place for this one too. Plus, you might have noticed that we have already used it. Wondering when? We used it when we were dealing with basepoints. Have a look at the screenshots. Do you see the screenshots of the basepoint options? Don't you see something strange? 3D shadows of the boxes are not oriented in the same way on each screenshot where they should.

Of course, this is just a detail. We've done it this way because we were lazy to create more screenshots (you'll later see why pictures aren't so funny to manage in a layout). But it will be useful, for example, when you'll want facing pages to be symmetrical. To apply a mirror effect on a frame or a group, you just need to click on the double arrows in the XYZ tab of the PP, as shown in the following screenshot. You can set a horizontal mirror (which match the example we've discussed), or a vertical one:

Remember that the mirror applies on the object itself. So you might need to create a copy first. You can do it: