Hi Pankaj,
1. Select the node (place the cursor) you want to shift ( Non controlling Interest).Then select the option from tool bar "Select +/-" or F9. Then select the nod (Current year income) under which you want to transfer earlier node.
Then go to "edit" and select option "Reassign". Through this you will be able to move this.
Regards,
Ankit K. Agarwal