move sketch without losing references to this

[malf]

Hi, I often have one or more general sketches in the root of a set to refer to the characteristics of the various functions of different parts. when design becomes more complex I have the need to enclose these sketches in one part (which would become the part of the layout sketches). If I create the new part and materially copy, take off and delete the original sketches, I will have the move, but I will have lost all the references that the other parts entertained with those sketches and I must reconnect one by one hand.
Is there a way to move a sketch without the references to him being interrupted?