A duplicate attribute button should be available in the edit entity screen

In the edit screen of an entity a button should be added to duplicate an attribute (see added screenshot)

Quite often one needs to add attributes of the same type and/or with a similar name. 

So to have a button available to duplicate an attribute in the edit entity ('Properties of Entity') screen would be very convenient. 

There is a work around though, in the Domain model view, it is possible to copy/paste an attribute. 

But it is not very userfriendly having to close the edit screen to duplicate any attributes