How can I add if conditions for Incremental Progression clause based on Proposed Person Type in RTF?

Summary:

I am trying to add if conditions for Incremental Progression clause based on Proposed Person Type in offer letter RTF template. I tried adding ((PROPOSED_PERSON_TYPE='Permanent') or (PROPOSED_PERSON_TYPE='Fixed Term')) but the Incremental Progression clause is not generated when I download the RTF in Edit Job Offer page even I set the Proposed Person Type to Permanent in Assignment Info.

Content (required):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):