Example NATIVE FORM MULTIPLE FILES:

If you want to have an input like in Example 1 and also to allow your users to upload files from different folders just set addMore option to true

addMore: true
Result:

Example AJAX DRAG DROP INSTANT UPLAOD :

If you want to have an input like in Example 1 and also to allow your users to upload files from different folders just set addMore option to true

addMore: true
Result: