FreeGameDev

If u make a world map - there is no option to test it !
If u want to test ur Map u have to go back to the game first....
And remove all Level points cause they are blocking ur way for testing the map.

Suggestion for improvement:
Make a Level map "testing" - Thank u.

You can use a hidden feature called "Developer Mode" which can enable a console and a cheat menu.

To access this, go to: C:\Users\<your name>\AppData\Roaming\SuperTux\supertux2\
then open a file called "config"
Find this text: (developer #f)
Now switch the #f to #t . Now cheat menu is enabled. If supertux is open, close it and open it again. Then in the controls menu you can choose what buttons will open stuff.

hmm did not work.
Thanks anyway.