sublimetext – How to set a keyboard shortcut for converting from tabs to spaces in sublimetext2 – Stack Overflow
http://stackoverflow.com/questions/14388223/how-to-set-a-keyboard-shortcut-for-converting-from-tabs-to-spaces-in-sublimetext

Sublime Textでインデントを綺麗に治す方法 | DECONCEPTER
http://log.deconcepter.jp/2013/09/sublime_text_indent/