Recent versions of Reader have Accessibility Actions, They provide quick access to important and frequently used features from accessibility tools such as TalkBack.
If you are using TalkBack, you may find it useful to configure a gesture in TalkBack to take you straight the actions for the current view. This can be done from the TalkBack settings on your phone or tablet, “Customize gestures”. I override “Swipe up than right” to “Show custom actions”. Of course, you can use whatever gesture you like.