Nice! 
Discussion
All these years I've been pecking at the screen to get the cursor in the right place for edits 🤣😭
I've known that trick and still forget 🤣
On some keyboards, you can swipe the backspace key too to delete a swipable selection block of text 👍
I dont use the default keyboard so it doesnt work...
Another thing to blow your mind is to make the mice appear on your phone's screen. If you connect a bluetooth game controller to the phone, moving the joystick around will move the mice around. At least, on android, because it's essantially linux.