Is there any way to revert the serpentine tuning shapes of a diff pairs?

Hi,

When I route a vertical diff pairs and adjust the length with the serpentine tuning tool, it seems that KiCad (v8.04) always starts the serpentine toward the right:

I would like to revert the direction (like a mirror) so the shorter tracer will be the outermost path. This would help tuning the length of short diff pairs (not so easy to use the skew tuning tool in this case).

Thanks