Select at Least One Item in a Filter List

[FerdiSisko]

Hi. Is it possible to create a filter pane list that requires a user to select at least one item. No item should be set as default. However, a user must select at least one .  (The results would then be used to filter the selection values in a second filters.)

Example:

Filter List 1                                                

Car Brands

Ford x--selected Ford

Honda

Hyundai

Lincoln

Filter List 2

Models

Mustang

Explorer

F1-50