Thanks Radoslaw S.
but I need to have that same option in the Multidimensional analysis chart; to change color for a Metric.
In this examplpo there are 2 metrics with same color, and it's hard to see.
does not seem to exist, is it planned to include it?
I've just realized that's MDA not a custom chart. Currently, there are no plans to support MDA, the view is for on-demand analysis, not creating "nice looking" charts. But feel free to post a product idea at the Product Ideas Forum.