To turn off automatic closing brackets, choose Coda > Preferences… , click Editor , then uncheck Automatically insert closing brackets .
When you move the text insertion point over an opening or closing bracket, Coda will display a visual "ping" animation over the matching bracket so you can confirm your brackets are properly balanced. This is also sometimes called "fence matching".
To quickly wrap text in matched brackets, select the text, then type an open bracket character, such as < or [.