Urgent: JQuery/Javascript/Java quick and easy project

I need this within 2-3 hours and budget is max 20$
If you bid higher or ask for any more than what you bid for, I'll move on.

Here is a JsFiddle:
https://jsfiddle.net/parth0009/yd58he7s/52/

Explaination:
I currently have this jQuery for multiple document upload. If you can check the jsFiddle, when you click on Add More Files, another dynamic option appears and also you can remove it.
I just need to modify this logic.

Requirement:
Using a servlet call, get a value from the properties for Document Types. We will use preset values: For example: 3,4,5.

If those values exist (3,4,5), we will populate the attachment options with those three values pre selected and not allow them to remove those options. At the same time also allow to add more files if needed.

Please let me know if you can change the existing JS. This should be quick for an experienced person in JS.