I found where to change color and size of track tail and loaded tracks, there is video demonstration: [Only registered and activated users can see links. ]
but I can`t find any option where to check/choose that beginning of track is shown :/

Maybe you should contact developers about your suggestions, but I do not know if they respond
once I wrote suggestion about "OZF4" file format but I have not received any reply to that
[Only registered and activated users can see links. ]