[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:
When the file is submitted the name could automatically be re-written like this:
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.