one way or another, first thing you probably tried is the copy and pasting text around. For the most part it works well, until you asks yourself, how the heck do I paste the same text over and over again?
After your first "paste", the paste icon disappeared from view. EEEEEEKKKK!!!
Fear not, it didn't disappear. It only "moved" off the little grey bar where it used to be.
Just swipe that grey bar (you know, where the suggested words are) to the right (or the other left) and you can continue with your pasting.
Now that you can only paste to your heart's delight until your lock screen kicks in (weird but that's what Microsoft claims)