On the left-hand sidebar, there are a handful of icons/categories that appear towards the top. In my case, Home, Favorites, Credit Card, & Identity.
Is there any way to control which categories are displayed?
Agree. The default behavior on "closing" Enpass (e.g., clicking "X" in the upper right-hand corner on the Enpass window) should be to exit the application (Menu > Exit or Ctrl+Q) as opposed to minimizing the application to the taskbar.