Blueimp File Upload: single file upload

I'm using Blueimp File Upload, how can I limit the upload to the last single element selected or (drag and) dropped? I already deleted the `multiple` attribute from input form and I set the `maxNumberOfFiles` option to the value `1` but if the first upload fails (because of the option `maxFileSize` or `acceptFileTypes`) the first element stays on top of the listed selected files (generated by template) and further files cannot be uploaded because they infringe the `maxNumberOfFiles` option. I'd desire that if an accepted file is upload and/or dropped, instead of being appended, it would replace the old (not accepted) file. I would also that the templates never prints more than one file when multiple files are dropped but only the first file.