History Button - with pressing this button, you can see all the chapters through which you have passed to get to this chapter in which you are currently located.
Button Head Back - with the help of this button you can return back as much as you want in order to change any of your selections.
Button Head Forward - if you have used the "Button Head Back", with this button you can return back.
Button Previous Chapter - with this button you can see the previous chapter, for example if you are in 102 with this button you will go to 101.
Button Next Chapter - with this button you can see the next chapter, for example if you are in 102 with this button you will go to 103.
Field Arbitrary Chapter - if you enter any number and press Enter you will go to the chapter with this number. The button is very useful when you have a picture with different episodes to choose from.
Button All Chapters - if you press it you will view / hide all chapters.
