Stupid wing question

I've decided to give FSDSv2 a try again. Anyways, I've made a complex left wing and conformed it to the 3-view, etc. For-the-love-me I cannot remember how to get it to look right on the other side of the aircraft. After copying & pasting I know there's a way to use it for the other wing but I figure it out. I did it twice on the last aircraft several months ago so I know it can be done. Thanks.