The purpose of Select mode is to select the appropriate width and height of an area to be magnified. Select an area of an image in the main Im2Learn window and click on "Show" or "Navigate" to display that area in the Magnifier window. If the image is multi-band, you can specify the bands you wish to display. You can set the zoom factor by right clicking on the magnifier window. Then, in Navigate mode, click on a spot in the main window that should be magnified.
Selecting an area in Select mode
Magnifier window
Navigate mode
Magnifier window