RES 3700 SLU Groups

I am trying to setup SLU Groups.  In an online manual I found the sentence below.  The part hat concerns me is the text in red.  When I program the screens and try to add the buttons, they just don't display.  Has anyone successfully setup SLU groups on RES 3700?

Touchscreen Key 1. Go to the Devices | Touchscreen Designer form and select the appropriate touchscreen where the SLU Groups will be located. This functionality will not work with a traditional touchscreen.

2. Add a key to the touchscreen.

3. SLU Group Areas. This area of the touchscreen will be generated automatically depending on the configured SLU keys. Add the appropriate SLU group areas to the touchscreen. Select Function: SLU Group from the Category drop-down.