Pattern Matching Output One Lower Index

Hey everyone - so I have a pattern matching callback where I want to “waterfall” the options down from each selection box. I’m trying to base the options + value of subsequent dropdowns to remove the selected value in the first dropdown, and so on for every dropdown (i.e. if a value is selected in the first dropdown, it should not be allowed in the 2nd, 3rd, 4th dropdown, etc… Then if a value is selected in the second dropdown, then that value should not be allowed in the 3rd, 4th dropdown, etc.). I’m having a difficult time doing this as I don’t think you’re able to use ALLSMALLER in outputs. Any help on this would be greatly, greatly appreciated! Thank you :slight_smile:

P.S. As a follow up as well, I would love suggestions on how to target a component that has an index that is 1 position lower than the one MATCH retrieves, if possible. Thanks!