Seems you previous reply got in the spam filter for some reason and suddenly the ticket went to -20 hours late, when someone found it and restored it, so - sorry for the late reply.
The way I see it - you need something like a horizontal PanelBar, which we don't have out of the box. The Menu may still do the job though, but keep in mind that severe changes like this one are not supported and you may experience issues. Check the demo
and decide for yourself. It may be best if you build it from scratch.
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