Noooooooo!
I came back to the project and I got stuck in the escape room :( :(
When I tried to test the code, I got a blank window, which is one of the webdeveloper's nightmare.
I remembered that in the new version of Flash projects, someone somewhere had said that we have to put 'this' before the instance object.
I commented a long part of the code just to reveal the background, and the 'this' tips helped me, but it remained also other parts of code that matched not.
So, I wouldn't put sticking plaster on my first project and I decide to learn Animate CC with more recents tutorials (even if they are not exactly the thing I have to learn, they will at least learn me to create a project which is not obsolete).
So, I will go back and adapt the 'Escape pinky room' later :)
It is even a good thing. You always learn from errors and getting stuck :)
I saved a tutorial on the Udemy platform and another one on SkillShare.
I'll tell you, even if you don't want to :)
Pic of the day:

The blank page, one of the webdeveloper's nightmare