Can we add/modify fields in content Lib?

Summary:

We need to default some fields in create requisition page, so I need to check if we can add those fields in Requisition Template.

Content (required): Or can we modify the fields in recruiting content library. So that we can default the fields from there in create requisition page.

Version (include the version you are using, if applicable):22D

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