how technically complex it would be to stack the panes in the Playground on top of each other, instead of side by side?

Right now I waste half of my screen just for one line just so I can get a reasonably sized visualization.

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Instead I would like to have something like this, even if it was limited to just two panes.

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(Or the other way around, code at the bottom, visu at the top, doesn't matter.)

Of course it would probably have to be resizable (I wouldn't want to have the same problem, just vertically.

And yes, I can just inspect the results, but that's quite annoying as it opens yet another window which I have to close all the time.

Peter