In “google home” app - how to save clips ?

Viewing video clips from my own cameras where i am Paying google for saving past historical videos After a burglary, i now want to save several clips to my phone ( they will get rotated out and deleted otherwise) How do i do that in google home app ? ( not Nest app ) Please help with steps. Rant: what a dumbass app from google. Google should be ashamed of that app.