How to automatically push and store uploaded files on the browser node to other connected nodes?

How to automatically push and store uploaded files on the browser node to other connected nodes?

I have a problem, first I deleted all the default boot nodes, and then added my own 4 nodes, so I know the addresses of all the nodes.
The following is the operation I want to achieve, my operating environment is the browser node (js-ipfs):

  1. I want to automatically push and save the file I want to upload to other connected nodes on the browser node, how do I do it?
  2. If it is possible, I hope I can actively select the target node that I want to store.

I need help very much and look forward to your reply!

I think you want to setup an IPFS Cluster: