How to import old videos from other instance

it looks to me that when I follow other instnce I only get new videos posted on it. How can I import all existing videos from another instance? I googled but didn’t found anything related.

When your instance follows another instance, PeerTube will create an activitypub-http-fetcher job that will fetch existing videos. If it does not work, check the job status in the administration panel.

I want to clear, if redundancy works then
Supppose peertube2 follows peertube1 and if peertube1 has video « A ».

Can i fetch videoA with some client (peertubeViewer) from peertube2 without interacting with real peertube1.
Can you explain me if possible
Bundle of thanks