Profile Contexts - Which to Enable?

Summary:

We have found support DOC ID 3001093.1, which resolves an error in Performance. The solution instructs us to enable Context value PERSON_PERFORMANCE_RATING. As we have never had to do that before, and that profile content section does NOT have any DFF's, we are now wondering if we need to Enable other Contexts. For example, our PERSON Profile Type configuration includes content sections for Licenses, Degrees, both of which have no DFF's. Must we now Enable ALL of the active associated Contexts in S&M>Workforce Development>Workforce Profiles>Manage Workforce Profile Descriptive Flexfields>HRT_PROFILE_ITEMS>Manage Contexts>Search, regardless of whether a DFF exists? Is there documentation for this somewhere? Thanks