Thanks! That is very interesting tool for mobile use, that floating button feature allow me to customize the button to exactly where it is comfortable for my hand.
It was fairly easy to setup a floating button to play and reveal the translation. This will probably save me from repetitive strain injury/carpal tunnel or a broken phone trying to do finger gymnastics reading with 1 hand while standing in the train/bus.
Next will be to make that button do a page to next sentence->play->translation with 1 click. This opens up alot of possibilities.