Thank you very much, Erel, i almost made it. But i have the following behaviour:
Now:
long click on homescreen -> widgets -> event raised instant when i touch widget icon -> widget appears. No need that.
Instead, i need:
long click on homescreen -> widgets -> long press widget icon -> event raised (startactivity, layout appears, select radio button, do whatever i need, etc) -> widget appears on homescreen.
Thank you very much for help and patience.