We will explain in the following order:
Click the cogwheel icon button.
Click the pull down menu.
Select the query you would like to run.
Click "Execute"
You can see the debug results on the "Test Output":
Click the cogwheel icon button.
Click the text box area.
Note ☝️
*The text box area is under the pulldown menu.It will allow you to edit the selected predefined query.*Edit query by clicking on the text box.