Multiple Upload

I am trying out the beta version and it works great. The only issue I am running into is that whenever a file is selected to upload, it automatically submits it. Instead, I would like the user to manually press “submit” once finished selecting/uploading all of their files. (problem e.g. if i drag and drop one file from one location to the plugin, it will automatically upload that file to dropbox and exit me, not giving me a chance to add a second file from another location).

Is there anyway to remove the auto-upload function to this?

http://wordpress.org/extend/plugins/simple-dropbox-upload-form/