I`m thinking about a new Parameter as Numeric Comma-separated input.
Input1=2,13,15,6,4,8,10,5,12 or any other separation symbol
In expression Input1[n] where `n` is the ordinal position.
for Input1= 2,13,15,6,4,8,10,5,12
It could be useful for Sequence counts, Randomise presence, Selector indexing, etc, I will find its purpose, just make it happen.