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Description
Is your feature request related to a problem?
Yes. It's hard to edit multiple places at once without multi-cursor support — something common in modern editors.
Describe the solution you'd like
Basic multi-caret/multi-selection support (like VS Code or Sublime) for editing multiple lines or tokens at once.
Describe alternatives you've considered
Additional context
I’d like to contribute this feature myself. Could you guide me on the best place in the codebase to start?