add ability to copy DMN Nodes and paste inside another Boxed Expression Node

When editing/working on a DMN DRD a user may need to copy a decision node (eg. a boxed expression that contains a Decision Table, Relation, Context, List) and paste/insert it into (nested) another decision node in the same DRD.

Let's say I have a decision node (R1) which is a Relation in the main diagram. Later I decide to move R1 into a BKM (BKM1). This BKM may have a nested Context Boxed Expression. So as a user I want to be able to copy R1 and paste it inside an entry of this nested Context inside the BKM1.

Today I need to:
a) manually recreate (replicate) the whole decision node inside another one; or
b) manually edit the DMN model xml which is very error-prone.