Show the "Edit" Button

Display the "Edit" button needed to configure HotKeys, SubKeys and Add/ Delete or Edit Catagory buttons from the Register Display by selecting the "Disable Password" button from the "Yard Sale Options Screen".

Menu > Yard Sale Options Screen > Disable Password > Done > to return to the Register Display. 

Now this "Edit" button will be displayed at the bottom of the screen.  Select the Catagory you would like to edit then select the "Edit" button to enable "Editing Mode".  

Once in "Editing Mode", select the Hotkey you would like to configure and it's configuration screen will appear.

When done editing the Hotkeys, select the Red "Done" button near the bottom of the screen to return to using the Yard Sale.  If you would like to "hide" the "Edit" button from other users, return to the "Yard Sale Options Screen" and select the "Enable Password" button.  This protects your register from unwanted changes.