This works if whatever is currently running in your terminal has support for the XTerm mouse escape sequences. Option-click is the shortcut to tell the termina

This works if whatever is currently running in your terminal has support for the XTerm mouse escape sequences. Option-click is the shortcut to tell the terminal to forward the click to the application running in the terminal. That's usually your shell or some editor. I seem to faintly remember that at some point this was actually configurable and you could configure the terminal to forward non-option-clicks and only enable selection mode on option clicks. I didn't find this option in current iTerm or Terminal.app versions though - I might just be imagining this.