Can I add elements and get elements from the same string set from 2 different detections, and have them share these values?
Yes, this is possible. The code from one detection can access previously cached data from another detection by using the same key, so that it will be able to interact with the same entry in the key-value
table.
For more information on using String Sets to manipulate built-in caching functionality, please see Panther String Sets documentation.