I understand you correctly? I can do this
now? But how?
In help to CIS 5.3 written:
Unlike files that are placed in 'Protected Files and Folders', users cannot selectively allow any process access to a blocked file.
http://help.comodo.com/topic-72-1-170-1736-Blocked-Files.htmlFor example, I put folder c:\temp\res2 to the "Blocked files" :

(Preview)
But
in the "Customize Policy" no "Blocked Files", but there is only a "Protected Files \ Folders":

(Preview)