When the Function of a softkey is set to “Unused” then it’s possible to define a text that is displayed in the location of the display that would normally show the function of the softkey.
However if a softkey is configured with another function, it is not possible set a text to display.
In some use cases it would be nice to be able to both configure a softkey with for example both a Static LED and Display Text at the same time.
The same goes for other functions that doesn’t show anything in the display like Audio Playback, Reset FBS etc.