There is a feature under the Words menu that you can use to reduce the point score of words used in this puzzle. So if you reduce them by 1 point, you'll see that your next grid when the word shows up as a possible. I did this for a while, but after you've done a lot of puzzles some of the common words get dropped down quite a bit. You can fix this by the word list manager in which you can change all the words with a particular score to some other score.
BTW, I don't use these devices; I find that after you've built a lot of puzzles you get a pretty good feel for what words you've used quite a bit and can avoid them if desired.
Another thing you can do that is similar but relates to clues is that you can add the clues you've used in a particular puzzle to the clue database (adding a date and puzzle details if desired), then when you clue those words next time you can choose the same clue or a different one, whichever makes more sense.
