More than one Editor UI opened at the same time

[canitaly]

I noticed that it's possible to have multiple Editors opened at the same time.
Using the Node ON/OFF or deleting nodes in one will turn on/off or delete the node in the viewport and in the current Editor, but not in the second Editor.
Is it by design? Is intended to have multiple Editors opened? Or is it just missing synchronization?

Thanks!
Giuseppe