Feature Request: Add multi-cursor editing #4236

Feature Request

Is your feature request related to a problem? Please describe.
Currently, editing is limited to single cursor. Multi-cursor editing would improve productivity.

Describe the solution you'd like
Add multi-cursor editing:

• Multiple cursor placement
• Column selection
• Find and replace with multiple cursors
• Keyboard shortcuts for cursor management
• Cursor mirroring

Describe alternatives you've considered

• Integrate with existing editor libraries
• Add as a plugin
• Create a separate editing mode

Additional context
This would significantly improve code editing efficiency.