Demo code for a popup editor

I do not know if I use correctly the search option, because searching for "demos" i do not get any results.

By the way, I am a new user of this forum, as I just purchased the planner component.

Is there any complete code on how to implement a popup editor instead of using any of the standard ones. In the manual I can only see the interface declaration, but I am not sure on how to implement it.

Demos are listed at:

It looks like the demo you look for is demo 4:
Demo4 Demo showing popup event editors and event shapes in Planner

Note that this is also explained from p29 in the PDF developers guide: