Is it possible to have another zone at the right of the thumb, for video pre-load?

[mihaistiuca]

I want to use the slider as a video progress bar. On youtube for example, the progress bar has a zone that shows how much of the video is already loaded in memory.

Is there a way to add a zone of a different color at the right of the thumb, that would represent the section of the video being loaded at a specific time?

See the image bellow for a better understanding:

[vikjovanov]

Maybe you can try to superpose 2 sliders ?

[ShivamJoker]

I also want this I think I will stick a progress bar