Find/Replace Security

Are you able to edit Security Roles using Find/Replace? I am trying to remove a security role of multiple tags and put them back to "Public". I am able to find all the tags security settings in Find/Replace but they are all greyed out and will not let me edit. Trying to replace with

While not 100% sure, looking at the find/replace feature it does seem it would work that in depth. Nor am I sure that it excepts such an expression.

However I'm sure you could create and run a script which could do this.

Also when posting any code on the forum please use the </> preformatted text button so it shows properly.