This section of the EgyGene GelAnalyzer4 software: Merging Data part includes the necessary commands to matching the bands automatically.
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This command matches the bands automatically between the entered data for different analyzed gel images. The program considers the bands across different gels are matched if their molecular sizes/weights are less than a specified value by the user. The program considers them as one band to combine the results of the different analyzed image together.
Tutorial video
(Set the video quality to 720 to be clear)