There shouldn't be a reason or a need to have the same words for all.
But the only way to do it is one at a time. It prevents spamming.
I think you can sort it out by keywords, I forget how that's done, where you can see what words you used. Haven't used it in a while, its fuzzy in my mind. Then you can at least see what ones don't have those words. I'm think its under bulk edit prices. But you can only see it there.
----Mike Savad