If I want to create a Java Platform with JavaFX, I currently have to create the Java Platform with the wizard, then go to its properties in the Java Platforms dialog box. Should be able to register JavaFX right in the New Java Platform wizard.
There are two possibilities:
1st) Add a new platform wizard like in case of J2ME CDC, J2ME CLDC. In the wizard the user selects the JFX SDK and the wizard either automatically clones a suitable JavaPlatform into which it adds the JFX or it asks user which platform should be used as a prototype (combo box in the wizard).
2nd) The chooser of JFX SDK will be added into New J2SE platform. User will need to firstly select the JDK folder (1st step) and in the (3rd step) the JFX folder.