title: Upload multiple files at once
body: <p>I'm looking to upload multiple (100+) files at once and then manipulate them sequentially (or even concurrently if there are no dependencies) using x++. I understand that there is the File::GetFileFromUser(), but I cannot select multiple files using this method, I can only do one file at a time, which for hundreds of files is not considered an acceptable solution by the customer. </p>
  
  <p>Is there a way to select multiple files at the same time so that the upload can do many files at once? Or is it possible to select a folder and have it upload the contents of a folder to temporary storage?</p>