Support opening the same file in multiple editors?

[original thread by Paul Maréchal]

I find it useful on VS Code to be able to split the same editor in different views, and I think it is currently not possible on Theia.

Is it intended this way, or is it just not yet implemented? Wdyt?

(should this rather be in /dev btw?)

It is intended but doesn’t need to stay like that. We would need to see how we want to support that in code as we are using the URI as the key to decide on whether to create a new editor or activate an existing. Could you create a ticket for that so we can discuss how to support it there?