Thanks again, I really appreciate all the help!
Sometimes it’s hard to get used to how a new tool works differently than what I’m used to, and you cleared up a lot of my confusion.
Yeah, I’m going to try to be more careful in the future. I was going a little quickly through the words I was adding because I was still testing it out. And that led to a few mistakes, which I then randomly clicked around a lot trying to undo.
It looks like the export tool lists known words with most recently “trashed” on top, so using that I was able to find my mistakes and then manually search for them one by one to undo.
I think I’m now back to square 1 with my lists and have a better idea how to use this site. 