Originally Insights and Translation were two tabs on a tab bar allowing one to switch easily between them. Removing it made the workflow require going through the dynamic tool bar - increasing the steps and slowing the response time to switch back and forth. The same applies to the left sidebar where one likely wants TOC as constant with occasional flips to the Favorites panel. Convert both sidebars to tabbed panels to simply actual workflow. As this was the original design, please prioritize this reversion.
