[Forminator Pro] Re-write File Name and Multi File Upload

Re-write the name of a file when it is uploaded.
For example, instead of the file retaining it's name like this:
example.com/wp-content/uploads/filename.pdf
When the file is submitted the name could automatically be re-written like this:
example.com/wp-content/uploads/3945073583843324.pdf
But still retain is original file name in the WP admin submission page.

Also, allow an option for multi-file uploads. Currently, only one file is allowed to be uploaded.