How do I swap characters in a title field?

I have many files where the format of the title is X - Y - Z, where X, Y, and Z are alphanumeric strings. I want to change the title to X - Z - Y.

Is this possible?

Try this:

New actiongroup

New action: replace with regular expression

Field:
TITLE

Regular expression:
(.) - (.) - (.*)

Replace matches with:
$1 - $3 - $2