The User Floorplan is a set of templates that allow you to manage the registration of a user.
This article explains how to apply it to a Panel object.
If you have never applied the FioriMobile Pattern on your KB, read GeneXus for SAP Fiori Mobile Pattern. On the other hand, once you create a Panel for Smart Devices, the following window will be displayed showing a group of categories, each one offering templates.
If you select the User category, only one template is shown and you can select it to be applied to the Panel for Smart Devices:

- Simple register user

Another way to apply it is by selecting an existing panel, right-clicking on it, and selecting apply Fiori Mobile template to control.

To incorporate this into your app read Genexus for SAP Fiori Mobile Pattern - Menu Floorplan