Allow "Copy"/"Move" object actions in the object editor

We currently have no option in the object editor to copy or move an object from one page to another. To do this, you have to manually create a new object of the same class in the target document, copy field by field from the source document and (optionally) delete the old object from the source document.

It would be great if, besides the 'Edit only this object' and 'Delete' actions we would also have 'Copy' and 'Move' with a popup showing up, asking for the page where we want to copy/move the selected object.