There are times it would be useful to interact with models across parent and page includes. Issue being is that working with each in the page builder doesn't expose the models from the other.
Though it would be more prone to braking, it would be nice to be able to set which model(s) an action is to be performed on by typing out the Name/Id.
Though it would be more prone to braking, it would be nice to be able to set which model(s) an action is to be performed on by typing out the Name/Id.