I do not have it, but I've seen a specific app for circling (I'd like to use it for all the lighthouses where I live. Haven't got it yet, but plan to. In the mean time I wanted to experiment with setting homelock at the base, send it away, and circle in that manner. Also, setting 4 ways points with a dynamic turn could be an option. Let me be clear that, I'm still in the learning process as well, but these could work.