Reading Heading in Nav Bar!

I cannot see heading of reading at the left column.

I can see listening, writing, pronunciation but reading there isn't. for example, if I need read a story, especially in case of short time, I want to reach it easily. Click and choose one !

Dear Diana, please don't take this as me criticizing. I just would like to make a suggestion! It is my wishing and needing. It's up to you and you know the best.:))))