Vilma Software Oberon gives you a possibility to cut or copy the key and paste it and whole it's content (and sub keys) into another location in the registry. Please note that if into the new place exists a key with the same name, you should first delete the old key and after that complete the operation.  If you are using the cut function, after the completing of operation, in the history will be written the deleting of the key that has been cut. 
To use those functions, just click the right button on the key or the value and choose "Cut". After that choose another key and again click with the right button on it, and choose "Paste". The using of "Drag&Drop" is much more easy, and the result is the same.