Filter on Metrics

Hi guys
I've created a Line Chart.
I have 2 Y-Axis.
I Want to put a filter on one of the Y-Axis. ( for example user=amin)

Filters will be apply to all metrics.
What should i do ? JSON Input or sth else ?

I would probably do something like this with Time Series Visual Builder. In my example I have two filters, extension:jpg and -extension:jpg, one of them is using the left axis and the other the right axis.