Come to think of it, I think #23 is to add to other non-Touring models. I don't think the Touring has add-on "packages" does it? I added some accessories (weather mats), plus this pre-shipped Touring came with some accessories that I didn't want/need (3rd row shades, Aero bars). But I don't recall packages.
Here you go, can't vouch for the source but this jives with my buying process recollections.
There are several option packages in the non-Touring models so you can pick and choose feature bundles, and when you get to the Touring, you're buying mostly everything, so the remaining add-ons are a la carte accessories (and not feature packages). And at least for 2019, Touring has 2nd row Captains seats no matter what.
There's nothing to add to the Ascent Touring other than color choice for the exterior and any accessories you want. The package on the Limited gets you "close" to that, but there are a few features that are on Touring that are not available on Limited including rain sensitive wipers, front camera, rear "smart rear-view" camera, etc.