k that represents an estimated current internal state of the paper machine process based on the concatenated measurement array y f k and the array of past changes in actuator set points u03b4u d k each sheet property measurement array is associated with a future sheet property target array y 1ref k j y 2ref k j and y 3ref k j respectively the future target arrays are provided as a qcs system service based on information provided by the paper machine operator j gt 0 represents future sampling instances similar to the common resolution measurement arrays of sheet properties the future sheet property target arrays are concatenated into one larger target array y ref k j at step 44 the sheet property component selector module 46 allows the user to specify if the controller of the present invention should control both the cd and md component of a sheet property the cd component only or the md component only the sheet property component selector module 46 permits modification of the target array y ref k j and the common resolution measurement array y f k to achieve the desired mode the estimated current state array x k the concatenated future sheet property target array y ref k.