Good morning,
In CocosBuilder, there is the possibility of dynamically change the speed of the animation timeline using the scan code?
I never found this explanation on the internet.
Errors written by Google Translate 
Is solved, the credits go to Timothy Zhang
https://github.com/TimothyZhang/cocos2d-x/commit/814c3f2e62b2bfefed47f76f17fd3ac52e284ca3
It would be nice to include it in the new version.