I tried making the question makes sense.

So I'll just give an example and my situation:

I'm browsing on fedia.io, clicked open a post that's from a community on lemm.ee, and it opens through my instance.

Say I want to see that post in a) lemm.ee, b) another instance not the home instance of that post, e.g. ani.social.

How I understand it, I'd have to search go to the instance I want and search the post on /all basically.

Any easier or automated way?