I have a large three level hierarchy of industry types and would like to allow users to select from the lowest level, or any of the three levels above.
Commercial Retail Licensed Premise
Commercial Retail Fast Food Outlet
Commercial Retail Automated Teller Machine (ATM)
Commercial Storage Land General Storage Land
Commercial Storage Land Builders’ Yard
The real list is much much longer!
I'd like users to be able to select just the lowest level, e.g. ATM, or to select everything from one of the levels above. To make it harder, ideally I'd like to do all this within a left-hand menu area.
Has anyone seen a website where this is done well?