Support for having multiple files open

What is the benefit? Why is this valuable?

Benefit is better UX so user does not have to change files now when editing user interface project

What are common use cases?

Editing a component that is part of the screen

Technical information

Consider the UI to be broken down to screen elements and individual componenta are instantiated into it. Now if you see that certain component is not looking like it should you need to open that specific file. When you open this file for editing, you lose the view of the original screen.

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