Yes sir, but unfortunately that's not really what I'm looking for at this time. It's my understanding that a multi-level dependency would follow something similar to:
(Select Box A: 1,2,3 -> [1] -> 1.1,1.2,1.3 -> [1.1] -> 1.1, 1.1.1, 1.1.2, 1.1.3), while I'm looking for something like:
(Select Box A: 1,2,3 -> [1] -> 1.1,1.2,1.3 OR Select Box B: 1,2,3 -> [1] -> 1.1, 1.2, 1.3].


I think I understand the issue now, but to meet the organizations timeline I'll proceed with making a lot of duplicate drop down menus. That being said I still very much appreciate your feedback, and hope you're doing well. Also thank you for the information on the other VBA authors as I think those individuals you listed comprise the majority of the individual's work who I've continually utilized as a reference.
Cheers!