ctrl-shift-del or ctrl-shift-backspace does nothing
They are labelled "Full measure rest" in preferences>shortcuts but they do nothing either with one note selected, either with the full measure selected.
To get a full measure rest, I must select the measure and press ctrl-del
When the full measure is selected:
backspace does nothing, and either ctrl-del or ctrl-backspace remove the measure.
But shift-ctrl-del or shift-ctrl-backspace does nothing.