presentationMode: Shortcuts are written on top of each other

1. Start Creator with parameter -presentationMode.
2. Press some shortcuts.
   The shortcuts are shown in the middle of Creator's window, but they are written on top of each other, leading to confusing mixtures:
   

The displayed shortcuts should not mix. The simplest way seems to be to only show the latest shortcut. A more fancy option would be to display something like a stack of the latest shortcuts, one above the other on the y-axis.