Selecting this option will launch the following Dialog Box
This feature allows the user to specify the degree of magnification to be used for each zoom step. The base field defines a basic scale factor which can be any number from 1 to 1000. Both the number of enlarge steps and the number of reduce steps can be set by the user, from 1 to 10. The enlarge fields define the zoom factors when the image is enlarged While the reduced fields define the zoom factors when the image is reduced.