Hi Giuseppe.
I'm not in a position to make a video tutorial at the moment but it sounds like you're missing a level selection. If you have source buttons and destination buttons, you still need to make sure you have at least one active level for a switch to get sent.
There are 2 ways to do this: 1 is to put a level selector on the panel the other is to set one or more levels to be automatically active when the panel loads.
Here is a simple piece of ogScript to achieve that:
nk.setLevelActive(0, true); //set level 1 active
If you already had an active level, please let me know and we can debug further.
#DashBoard