title: MUI pages order in NSIS
body: <p>How to change order of pages depending on some clauses? For example, there are 2 radiobuttons on custom page - 'repair programm' and 'uninstall programm'. When I select 'repair programm' next should show 5 pages and when I select another radiobutton should be 2 pages.
  And is it possible use in uninstaller install pages and vice versa?</p>