How do I create multi-level dropdown?

[infolinematrix]

I want to create Muli Level dropdown using Form Builder, like Country->Region->City .. Its that possible? if yes please give a hint example ..

[kristijanhusak]

@infolinematrix not sure what you mean by multi level dropdown, having nested data in the single dropdown, something like this example https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_optgroup or you need to select information in order, like select country first, and then 2nd dropdown appears and lists only region of that country, etc. ?

[ahu]

@kristijanhusak I think it's the second（linkage selecting / cascading selecting）. I just want this too :)