Add color choice for tracks (and subtracks)

[fnx2k]

I have track records with a few loops superposed.

I made usage of the track, split function which is very handy to analyse each subtrack.

To identify the sub-tracks I would like to be able to draw them with a different color for each of them.
Ideally I would like to have a new color proposed for each new track or sub-track created, with the ability to change it if required.

I also like the small arrows to indicate the direction of the motion, but I find them too small on my screen.

(NB: the split function could be added in the point contextual menu, with a center view around the point to locate it)

Regards