I try to follow the guide http://docs.cryengine.com/display/CEPROG/UI+Element
To create an event / button. But it does not work when I click the button in the Cryengine Nothing happens.
Could you explain to me how I insert a button correctly?
There is plenty of things you could have done wrong. Show your .xml file, we'll start from there. Ui system is very straightforward so it won't be too bad.
Cryengine tutorial videos on my Youtube channel! Check it out !