Error in automated door tutorial?

Hello, i’m a new Unreal user, and i followed a few tutorials.

I noticed an error in the tutorial serie n° 1 (automated door) in the chapter “Finalizing Use Controls”.

link text

There is a confusion in the creation of variables “Door Is Open” and Door Is Closed.
It’s not possible for the reader to know what is wanted there because of the confusion in the text.
When i create (for the second time) the variable “Door Is Closed”, as told in tutorial, it’s not possible to name it because it already exist (we were asked before to create it in a previous section).

And then, it is asked in the tutorial to drag the “Door Is Closed” variable, while it has not been told before to create it.

So, everything worked very fine until that moment in the tutorial.

My doors are not closing, after hiting F key. It remains open as a go away from them. I presume it is supposed to close again without pressing F again.
Sorry for my poor english.

Well, is it an error in the tutorial so ? This sequence in the tutorial is very confusing and deserves some lights in my opinion.

Thanks, hoping to get an answer so i could finish the tutorial.