@sanswatcher Double tap the text, click "select all" if you cannot find that button, click the button with three dots (looks like this : but has one more dot) and click "select all" then the option will say "Copy" click copy and you're done copying
When writing, click on the bookmark in your phone when your keyboard is out, I do not know what your bookmark button looks like, but you could search on google what it looks like
Then after clicking bookmark, you'll see the copied text, click it and you'll past the previously copied text
(I didn't check my announcements at this time, srry for not replying sooner)
Also, you could always save and finish up the story later, after writing look at the top left, and click the button there, it'll save and you can go back anytime
(Sometimes it'll say it has problems with saving which shows you the previously saved counts of when you were writing, I usually click the newest saved one A.K.A at the very top and leave, sometimes this process happens alot, but it's fine)