title: How to make a SectionGroup mandatory in NSIS script
body: <p>In an NSIS MUI script it is possible to make a section compulsory by adding "SectionIn RO" to the section. I would like to specify that the entire SectionGroup is compulsory. I know I can make each of the individual components compulsory which makes the group compulsory by default, but the SectionGroup checkbox is still enabled indicating that the user can turn it off. This could be confusing.</p>
  
  <p>Is there an equivilent to "SectionIn RO" for SectionGroups and thus force the group's checkbox to be disabled?</p>