Database Subcategories

I have setup a custom profile page for my members that is connected to a database. It allows me to select “Reference” my other dataset which has all my department names in it. Thats great - but what I want to be able to do now is allow a “Sub-Reference” or “Sub-Category” to allow members to then also choose their title within that department.

How can I do this?

Can you better explain what you need?

I think using pictures will make it easier to explain. this is my custom user form for member.

  1. Name
  2. Department. (Eg. Stunt Team)
  3. Job Title. (Eg. Stunt Coordinator)
  4. Website
  5. Etc etc

Right now box 2 is connected to a dataset (categories) containing the names of each department.

I want box 3, to show different results depending on what the user chooses for box 2 (department)

Does that help?

How do look like your second COLLECTION (categories) ?

I think I got the idea:

You want the JOB TITLE dropdown to change and show the job title referenced in another COLLECTION, filtered by the DEPARTMENT dropdown.

Can you show us the other COLLECTION?