Not that I know of. However, the voodoo doll solution isn’t difficult, per se, it’s just very rigorous.
I haven’t done anything too intensive with them, but I do know how I would go about doing something like this:
Put every letter in their own sector, tagged from n01 or whatever to n26 (is a set of a hundred tags separate from the one’s you’ve used already), 1 as A, 26 as Z.
For each word you want to spell, have a conveyer belt corridor with a repeatable player cross linedef that either raises to highest floor or lowers to lowest floor (one for each letter), a repeatable player cross teleport line that closes a door at the beginning of the closet, and a teleport linedef that leads to the beginning of the closet.
with this method, there would have to be a small raised border around each letter (as high as you want the tile to be when it’s up), and a tiny sector touching the letter flat (as low as you want the tile to be when it’s down)