A portable data reader and methods of operation for reading encoded data, such as optical code labels and RFID tags, from an object. The data reader includes a housing adapted for handheld operation and a touch screen display supported on the housing. The data reader further includes one or more reading engines each associated with a set of decoding instructions for configuring the reading engines to read data from the object. The reading engines are each associated with a unique control gesture that may be applied to the touch screen display to configure the data reader with a particular reading engine. The portable data reader includes a processing subsystem communicatively coupled to the touch screen and the reading engines and operable to detect whether a control gesture has been applied to the touch screen display or rocker keys and then to configure the data reader with the selected reading engine.