
Tom M. answered 07/10/19
9 Years of Teaching and Using SketchUp
Yes. There are several ways that a component can be mirrored. My first choice is to use the Flip Along command which is found by right clicking on the component and then choosing which component axis direction you want, either the Component's Red, Green or Blue axis. If that doesn't get you want you want, then use the Scale tool on the component and drag the appropriate handle of the Scale tool until you get -1.00 as the scale amount.
And this works for later versions of SketchUp as well. Good luck.