You need VLF EPC141006 (or later) to use this feature.
This is the name of the LANSA RDMLX reusable part serving as the VLF-ONE background pane handler.
It is launched when the Framework starts and remains in the background of the main VLF-ONE window until the Framework is closed again.
It is not activated when used in tablet mode.
The shipped VLF-ONE demonstration Framework uses reusable part DF_BACKPO to display this 'watermark' on the bottom right of the main panels:
Refer to the source code of DF_BACKPO for more details.
This property is in the Web/RAMP Details tab.