the 1.10 DEBUG Secret

[Twister22]

I know the 1.10 has a secret that leads to debug mode!
though one thing i noticed
Start a game and press the "-" and the Shift key at the same time
The message " DEBUG MODE ACTIVATED " appears.
???
all i did was to add this to the shortcut
-imacheatingscallywagger
............
but then nothing happens

The Page that shows How to get Debug Mode