Thank you for linking me to the wiki. I always feel a bit silly when that happens but for some reason, I assumed it worked a certain way when it just... doesn't, as shown in the wiki lol. I might be able to find a workaround there with the forced option but for now I think I'll just need to keep doing them manually.
As for the word counts, the anthology does sum them up correctly for the "word count" column, as it should. I have a separate column that I use to show the "word count range" of a fic, which uses the "numWords" function and a conditional to calculate range. It works great for individual fics, but with anthologies it will output [<10k, 10k-25k, 100k-150k] instead of the summed range (which might be 500k-600k, for example). It's a fairly specific issue so if there isn't a way to solve it, no problem, I can continue to input manually.