Is it possible to partially update IPNS

Here is the scenario:

Two IPFS node need to publish to the same IPNS namespace. So I create a public-private key peer and have it on these two nodes.

Now, I do not want all the content to be on the two nodes all the time. Is it possible for node 1 push file1, and file2 to the IPNS namespace, and then node2 push only file3 (without removing file1 and file2) and when another node3 who is not part of the ipns namespace, pulls from the namespace, it gets file1, file2 and file3?

I’m not dure, but i think that only if the nodes are member in a cluster.