Zoom horizontal on all plots on/off

[mrlarsendk]

I would really love to have the ability to lock zoom on all plots such that when I zoom in time on one plot, I get the exact same time frame in all other plots.

[bkueng]

Indeed that would be useful.
We just need to check if the browser and server can handle it, because it will trigger many update requests when zooming in all plots at the same time.