Manage Account Rules setup for Procurement transactions

Summary:

I have a requirement to populate an account segment on purchase requisitions based on the JOB of the preparer. I see "Preparer" in the list as a source but not any other data related to Preparer, etc. associated to Purchasing. We have many users with this specific job and, of course, this will change over time so having a "Preparer in " condition does not seem feasible. I have attempted to review all of the source options but not seeing anything available to capture job details. Is there a function within the Account Rule setup to