I am creating a team member page, and it would be nice to be able to filter alphabetically by last name instead of first.
You can do that now:
Create a field called "Last Name" (here I've done so in a collection called "Authors"
Add a value for "Last Name" for all of your items (in my case, "Authors")
Select "Last Name" as the Sort Order for your dynamic list:
Brilliant, thank you!