[Help wanted] Placement graph out of the map, multicolor polyline, options?

Hi, I just wonder if is there a way to place the graph out of the map or below/above map container?

current implementation is ok only if we are using big screen and big maps. In all other cases it covers the map with e.g route.

Also IS there any way to use polyline multi-color based on e.g graph color.
So i can map polyline according to graph?
E.g Using https://github.com/Oliv/leaflet-polycolor

My another question is about Options for points images when using multipoint geojson, how I can use custom point image?

And last one, is there a way to change elevation max height, since now it looks like small elevation steps are crazy climbing :D