Looking for the equivalent of UNIQUE

Hi,

I am working through some basic principals trying to get more familiar with wappler - hoping you can help me!

I have a list of car makes that is being pulled from my database. These appear to the user as a custom select dropdown. I have managed to make the dropdown display the makes from the DB but it is listing the make from every record. Normally (as in, using something like google sheets!) I can just use UNIQUE to turn that list into a list of unique values. How do i do this in Wappler? I tried clicking the wand button to look at the operations available but its not obvious to me what I do next - can someone point me in the right direction?