this morning I was trying the "Polar Coordinates" plotting option of 2D-data. I think this part of your program needs some attention.

- There seems to be no way to label the axes.
- The 90°-mark is overlapped by the second, third and fourth title; the plot is resized, but I think a vertical movent of the plot is missing.
- Many options are available but do no effect the plot, for example the "Multiple Axes..." or the menue-options under "Options / Grid Lines or Box / ...", and should therfore not be visible (as usual in your program).
- And the "Angles from 0 to +-180" setting in the "Polar Plot Options" - dialog is not stored in the grf-file.
I use the current version.
Regards.