correct way to move a line in ChartJs

[RaSMiY]

I'm using ChartJs in a project where I need to shift a line on chart to the side for some pixels.
Line is being drawn every second when a new value came. There may be several lines (datasets) on a chart. Lines could be overlapped. That is why we may need to shift a line to the side.
At now I did this by redefining draw() function in my chart which extends LineController. I believe there may be more native way to do this. I tried to extend LineScale and use its getPixelForValue(value, index) but since it lacks datasetIndex It shifts all lines simultaniously.

May be I have missed something.
Could you give me advice what is the way you would be solving such task?

[RaSMiY]

If someone is interested in solution to this question...
I found better way to achieve the goal. Here it is:
I've divided all coming parameters into separate datasets and added unique horizontal scale to each dataset. Then if I need to shift the parameter line, I change suggestedMin and suggestedMax properties of corresponding scale.