Version

5.6.0

Link to Minimal Reproduction

official demo

Steps to Reproduce

To visual map colors to all bars in the demo, we have to add the same visualmap for each series.
But every visualMap has their own controller ...
Is there any way to show only one controller and control all visualmaps/bars?
Or is there other way to add only one visualMap config for all series?

Current Behavior

Multiple series need multiple but same visualmaps config.
Each visualmap config brings it's own controller

Expected Behavior

Add only one visualmap for all series.

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response