Commands are not in the menus
Issue
Many commands are only available via the right-click context menu or from the tool bar.
They are however not available in the menus, where usually all commands can be found.
Solution
Have in the menus and - as a redundant convenience - in the various other locations.
This also helps novice and expert users, since novices can search through the categorized menus and learn the corresponding icons, while expert users know the correct command by icon and can use it from e.g. the toolbar.