This section of the EgyGene GelAnalyzer4 software: Image Analysis part includes the necessary commands to resize the borders of a detected lane on the gel image.
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This command changing the borders of a previously detected lane. Press the button "Resizing Lane" then go to the eastern or western lane border and follow one of the following methods:
A. Press the left-mouse-button, hold it down, move to the new position and release it.
B. Click the left-mouse-button, release it, move to the new position and click it again.
Tutorial video
(Set the video quality to 720 to be clear)