Cool - I have a left navigation on several non-threads pages, all using threads static horizontal navigation - so this will enable me to offer this to certain users, and of course not display on those pages that already have a left navigation built in.
Am I also correct in saying that if I include the correct code within sidebar_leftopen.tmpl and sidebar_rightopen.tmpl, I can open a different sidebar.tmpl for different groups? Having quickly looked at the code this seems like the best place to control different menus for different groups.
Thanks again Dave for your work.
Ian
at the moment - but expanding all the time....) 
