Quick question in regards to how linear dynamic studies are linked to frequency studies.

My workflow: Run frequency (modal) analysis --> copy to linear dynamic study & run --> make some geometry changes --> re-run???

My questions is at the ??? step -- do I need to re-run the frequency analysis or just re-run the linear dynamic analysis? (Will re-running the frequency analysis automatically update the linear dynamic study w/ new resonant frequencies or would I have to copy the study to a new linear dynamic?)