In the example of "start-uploading-manually.aspx", how can I add the checkbox control  in the queue table and  add a "Cancel selected Uploads" button after the "Cancel all Uploads" button?  I don't want to delete file names by clicking  the right side red cross mark.

I know you have the samilar funcitionalities after finshing uploading files.  How to do it before file uploaded to the server.

English is not my native language. Hope you can catch my idea. Thanks.

Kevin