Hi JD,
The list is a bit hidden and hard to find. But yes, there is a list of Repeater and Item properties you can access. To find it, first click the function (fx) button.
Then, click the “Insert Variable or Function” link, and you’ll find the Repeater and Item properties listed under: “Repeater/Dataset”:
There are some helpful explanations in this thread.
In particular, this comment has a lot of info.
Hope that helps!
-skb