Is the Navigation tree widget from the Appstore compatible with Mx5.5 and higher?

I cannot get it to work properly: Firstly: whether Auto-collapse is Yes or No, it collapses always. Secondly: It does not display the pop-up form for the second level. I have tried Content and embed without succes either. Do you have a small working example for me? Am I correct that the Formloader attribute + Listen source is only applicable to Mx V4 ? If I have to use the Listen Source for MX5 as well, what do I have to enter in the field "listen to source"?
1 answers

I'm running into the same problem. All form targets don't work.