Can you please make it so I can switch profiles in the same browser window?

I like the idea of profiles but I do not want them in separate browser windows.

I am on my personal profile (and tabs) in the dropdown. I want to switch the browser view to see my work profile (and its tabs), but I cannot. I can only open another browser window which defeats the purpose. I could already open two Safari windows and keep my tabs separate but without a label (Personal, Work, Study, etc.).

Am I missing something? Thanks.