Here is a video tutorial demonstrating a way to quickly draw joinery for the corners of a box. I used dovetails but this could be used for any other joinery technique as well. It could also be used in other applications where you need a mirror image of a detail at the opposite end of a piece. This method is basically leveraging the power of components and the mirror function of the Scale tool. I show how I draw dovetails but that's not really the point of the video.