Hello scott
Can you explain more how you save the user input in the database ?
However, I can suggest the following to show drop down labels based on user inputs:
when a user inputs a value push it as a new item into a data array for the drop down. - here how it the array of drop down should be like.
OR create and empty data base and insert each user input value to it and connect the drop down to it.
you need to add an event to get the value of the user input and work with it.
useful documentation:
I hope this helps!
Massa