I would like to think that having the ability to draw a circle of x radius on the chart for plotting TOD would be very helpful. I fly GA aircraft and do not have an FMS that can show the optimum TOD. Being able to draw a circle around the bottom of descent would make it much easier to begin a descent without having to constantly monitor distances on the GPS Flight Plan.
We shall use your suggestion for potential enhancements and new functionality. So, please be as detailed as you can.
Only one issue per thread so that others can easily see what has been reported.