I learned how to configure Sublime Text2 to draw vertical lines for indentation.

"draw_indent_guides": true,
"indent_guide_options": ["draw_normal", "draw_active"]

Simply add the above settings to the JSON file that opens from [Preferences] → [Settings - User].

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Reference Information

・Sublime Textで今いるインデントに縦線を引く | Border/memo

That’s all from the Gemba.