Ability to view multiple 'pages' at once

Check for duplicates

• 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 n’indique aucun fichier, test ni point d’entrée. Commencez par examiner la navigation existante entre les pages et la mise en page de l’UI de bureau, en utilisant l’image liée comme direction attendue. Le travail sera considéré comme terminé lorsque les utilisateurs pourront afficher simultanément une combinaison choisie d’arbre, de skills, d’items, de calcs et d’autres pages.