Not sure how my Properties sub-panel of Categories became vertically aligned inside Categories as opposed to the original (default) of being at the bottom of the Categories panel. See left portion of attached screen shot.
I've re-watched the video on panels and tried a few things but can't get the Properties back to the bottom of this panel.
What's the trick?
You can do this by resizing the catalog panel and having the auto-hide enabled. To get back to "normal" - just choose the default workspace to reload things...
Thanks - couldn't get it to go back but the reload default workspace fixed the issue.
Only took a few minutes to re-arrange the other pieces for my preferred workspace and resaved it (with the Category Properties in their rightful place).