How to aggegrate a bundle and convert to a text string

[JG24]

ah ha! I found the answer here: How do I gather all of the item values within a subarray of multiple collections? - #2 by Bjorn.drivn

I added the map() and flatten() to get a sub-array

and that got me the output I was looking for:

Here is the blueprint in case any one else is looking for some help.

blueprint (1).json (24.3 KB)