Hi Malcolm,
Thanks for the feedback. In this specific case, the page auto-updates the big status box, the counts-by-status bubbles, and the page/tab title, but not the rest of the html. If there is ever confusion, just click on the "Refresh" link to the right of the status box to get the most up-to-date status, as well as command progress.
Note that you can also navigate to other pages, open files, and even launch more jobs while other commands are running -- limited by the capacity of the host to handle such a workload.
Hope you find TPP useful,
even with all of its oddities!
--Luis