AJAX Valums upload (HTML5 uploader using drag and drop) - possible to make files queue?

Anyone else use Valums Ajax upload?

http://开发者_如何学运维valums.com/ajax-upload/

I was wondering if anyone has a solution to make the files queue and go one by one instead of all files at once.

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Set max connections to 1:

"maxConnections: 1"