You are welcome pal. :-)
To be clear. You don't put the nodes as is in the variables, you put the names of the nodes either by doing a 'ccbSetCopperCubeVariable(varname, value)' or by using the action 'Set or change a variable'.
So if you wanna move a character to a node named "chair", you either do a ccbSetCopperCubeVariable("end_node", "chair") or a 'Set or change a variable' -> VariableName = 'end_node' , operation = 'Set (=)' , ValueType = 'Value' , Value = 'chair'