Click the tab of the screen you wish to edit on the left. Here you can add or delete buttons, colorize buttons, rearrange buttons, etc.
To add a button: Search for the food item you wish to add from the list on the right. Drag and drop the food item onto the grid where you want the button placed.To delete a button: Drag the button from the grid to the Trashcan in the bottom right corner.To Delete ALL Buttons: Click Delete All Buttons at the bottom.To colorize a button: Select the Label Color and Button Color from the choices at the bottom. Click the Colorize On button and then select the buttons you wish to add the color to.