Sure, we can add this, but we unfortunately can't put in in the UI for 4.0 because translations are already complete. We've added the `
export-selectionCLI argument to 4.0.71-beta. Also you'll need either launcher 4.0.34+ or use
ignore-unknown-args` so the launcher passes the argument to the editor.
We'll put it in the UI for 4.1!
