Ability to view multiple 'pages' at once

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• I've checked for duplicate issues by using the search function of the issue tracker

Is your feature request related to a problem?

You cannot currently view any combination of tree, skills, items, calcs, etc. at once.
While leveling, it's annoying to have PoB on another monitor that you may need to click back and forth between pages to see information

Describe the solution you'd like

Enable viewing multiple 'pages' at once - something like:
https://i.ibb.co/MgHdwpJ/image.png

Describe alternatives you've considered

Maintaining the current ):

Additional context

No response

L’issue non indica file, test o punti di ingresso. Inizia esaminando la navigazione esistente tra le pagine e il layout della UI desktop, usando l’immagine collegata come direzione prevista. Il lavoro sarà considerato completato quando gli utenti potranno visualizzare contemporaneamente una combinazione scelta di albero, skills, items, calcs e altre pagine.