One last step : group of workspaces

Thanks for your great work on materiel shell : never seen such advanced desktop with amazing features !

At my point of view, it would be perfect with a supplementary level : group of workspaces. In the video about spatial model : https://material-shell.com/#spatial-model, I would like that "Workspaces" become "Groups of Workspaces" and "Applications" become "Workspaces" ... This would also allow to come back closer to gnome : horizontal bar and horizontal sliding between workspaces ;-) (a little bit like in Matrix workspace extension)

Thanks for reading my thoughts