Editor usability: related resource widget is misleading

[jsteffen]

Adding more than one related resource doesn't work in Recommended / Relations/ Related Resource, adding another overwrites the already existing one

[cspurk]

That’s expected behavior: the metadata XML Schema allows exactly one related resources only.

I agree, though, that the current implementation is misleading: in the rest of the UI we use the green “+” button to add a new field. In this case we use it to create a new model instance (and possibly to replace the currently set one). I’ll change the issue to an enhancement request that we can work on after the release of v3.0.