Square Website Universal Filter Question

Site URL: https://imnworld.squarespace.com/

On the following page: https://imnworld.squarespace.com/. 
Password is:  password

We are using Squarewebsite's Universal Filter. If you click on the "Region" dropdown, it has three choices. These are by default alphabetized, but we would like to reorder them differently. Would anyone know how to do this? Thanks in advance if you do. 

It looks like you solved by change default setting to this?

 category: false, // disabling default Category dropdown
                tag: false, // disabling default Tag dropdown
items: [{
                    name: "Region",//dropdown name 
  					allowedOptions: "North America, Europe, Asia-Oceania-South America",                  
  					sort: 'asAllowed',
  					multiple: true,//allow to select several categories
                    getAttr: 'categories'
                }

Thanks tuanphan - they were able to help with this as you have. Thank you!