This function allows you to add multiple notes on a single column. After you push the Button, notice that the Button Text Changes to "Stop Recording". Also, Every note that you hit while you are recording is stored on a single column of your tab. When you press the "Stop Recording" Button, you will resume with normal tab printing.
Note: Notice that the icons to indicate a note has been pressed changed from red to blue. The blue notes indicate a chord, not individual notes.