When I installed Architecture 2008, I was able to click on an object and see (or change) its current layer in the Layer window of the Layer Properties toolbar, which is how I've always used this since r14. The same also applies to linetype, color, etc. in the Properties toolbar.
This suddenly stopped working last week. When I started up my computer and started Architecture 2008, it did nothing when I click on an object.
I think this is a system variable that I've heard about in the past, but can't find it anywhere.