An app called "One Handed Mode" is being developed at this xda thread:
http://forum.xda-developers.com/xposed/modules/mod-one-handed-mode-devices-t2735815
There's an anomaly using that app with Pleco, which I describe at this post at xda:
http://forum.xda-developers.com/showpost.php?p=52674228&postcount=150
The dev says he doesn't recognize what Pleco's doing with that control bar at the top of the second screenshot. So he can't include the control bar in his one-handed window. Can you provide some technical info so that the dev can take a request to make his app work better with Pleco?
http://forum.xda-developers.com/xposed/modules/mod-one-handed-mode-devices-t2735815
There's an anomaly using that app with Pleco, which I describe at this post at xda:
http://forum.xda-developers.com/showpost.php?p=52674228&postcount=150
The dev says he doesn't recognize what Pleco's doing with that control bar at the top of the second screenshot. So he can't include the control bar in his one-handed window. Can you provide some technical info so that the dev can take a request to make his app work better with Pleco?