New UX Releases 15.6. and lower
In 15.6 and lower, this is working as designed. The one option would be to create a channel to link this to non labor resource/role information from Classic PPM.
Starting in 15.6.1, this feature is now available on the Project Staff grid. For more details on this and other changes in 15.6.1 see: https://docops.ca.com/ca-ppm-saas/15-6-1/en/release-information/clarity-ppm-15-6-1-release-notes#ClarityPPM15.6.1ReleaseNotes-ProjectStaffPageandGridEnhancements