I'm studying javaFX and I want to create a plug-in project (RCP) based on java FX.
Then, I created an fxml of test and linked to the Application.e4xmi, which structure is shown in the following figure.
Therefore, I tested that it cannot be possible to shift a Part from/to a stack.
On the web I saw that, to do it, I have to insert an Add-on inside the project. in details which name is DnDAddon.
Then, now the bigger problem: I'm not be able to detach the Part outside the application/workbanch.
I know from https://github.com/eclipse-efx/efxclipse-rt/issues/256 and from https://www.eclipse.org/forums/index.php/t/1083410/ that it was a problem, but now is there a solution??
Thank!!

Resolved :P !
I post the solution because it can be useful to someone.
In the
Windoiw preferences->Plug_in Development->Target PlatformThen, here you have to add as Software the nightly version: http://download.eclipse.org/efxclipse/runtime-nightly/site
Therefore, to enable the Part detach feature, you have to insert inside the
Run Configurations->Arguments->VM Arguments:-Ddetachdrag.enabled=true
Regards.