Sorry - I still don't understand what you're asking.
Each playground (view of code) has a unique URL. You can have as many EDA Playground windows/tabs open as you like. If they share the same URL, then changes you make to one will be reflected in the other when you reload the page. If they don't share the same URL, then they are completely separate.
There is a Collaborate button, which allows two or more people to use the same playground together.
Is your scenario mot one of those? If not, what is it?
Matthew