1. A method for operating a magnetic resonance system comprising the steps of: in a control device that operates a magnetic resonance system to acquire image data from an examination subject, manually entering only three first control parameters that define boundary conditions selected by an operator making the entry, said first control parameters consisting of contrast response, spatial orientation of at least one image data set to be acquired, and an organ of the patient from which said image data set is to be acquired; and in a processor in said control unit, automatically determining a plurality of additional, second control parameters that are necessary to control operation of said magnetic resonance system to acquire said image data, and defining second boundary conditions, using said first control parameters.