I understand I can block specific extension ".123" using "MediaType.FromFileExtension" contains ".123"
And I also understand that I could use multiple criterias in the same rule to match other extensions (i.e. ".123" or ".456" etc.)
However I'd like to keep all the extensions I want to block in a list, and I'm not able to use operator "at least one in list" for String or Wildcard Expression (Property gets deselected in the "Edit Criteria" window).
Any idea ?
Thanks and best,