add value to users manytomany field from form results

So this is all I needed to do :slight_smile: :tada:

 def form_valid(self, form):
        super_resp = super().form_valid(form)
        self.request.user.event_access.add(self.object.id)
        return super_resp

Thank you for your patience Ken, it must be frustrating at times having these sort of questions from inexpericienced programmers but your help is very gratefully received.