Table of contents collapsing menus

Every time you click something on the table of contents, the menu will collapse and then expand again to that Chapter and Section. A better implementation would be if the menu only collapsed and expanded when you leave a section. It is just visually distracting for users as the contents is always closing and re-opening up again (even when you are simply moving to the next page).Every time you click something on the table of contents, the menu will collapse and then expand again to that Chapter and Section. A better implementation would be if the menu only collapsed and expanded when you leave a section. It is just visually distracting for users as the contents is always closing and re-opening up again (even when you are simply moving to the next page).