How do I turn off drawing mode in iOS 10's Messages? I want to turn off the little squiggle in the bottom right corner of the Messages keyboard (the one that activates drawing mode). How can I do this? Is there a setting?

 

(I know the keyboard in the bottom right screen turns off drawing in landscape mode, but I want to permanently disable the feature.)
To Turn off handwriting in landscape mode go turn your phone to the side to activate it. Then tap on the keyboard in the bottom right. This should keep the iPhone to a keyboard when you go to landscape.