Section 1.7: there’s a warning near the end with a typo. It states "If your Eclipse application uses a difference ID…​" instead of "If your Eclipse application uses a different ID…​"

Section 1.7: the last screenshot (and others before this one) show four Model Fragments added. The "children" one is not mentioned on the text. What is that?

Section 1.7: my menu and command appear as expected, but the menu item is disabled. Any idea why?

Section 2.2: when listing the dependencies to be added, it includes "org.eclipse.jface (which also provides org.eclipse.swt)". On Section 1.2, both are listed. Could org.eclipse.swt be dropped from 1.2?