Disalbe working hour times when 8 hour duration is selected
Arranging a meeting for 8 hours, if you want to see more options, you can un-check the "working hours" option so that you get all options that go beyond 6 pm.
True, but this is not intuitive behaviour. I didn’t think ogf it before you mentioned it. When you select 8 hours or custom you should have a cascaded question: Within working hours or not?