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Although your old icons will still (mostly) work in Metview 4 (interactively and in Macro), you may wish to convert some of them to the new formats in order to use the new parameters available. As an example, suppose you have a Contouring icon from Metview 3 which you wish to convert into a Metview 4 Contouring icon. In Metview 4, first create a new contour icon. Edit this icon, and drop your old icon into the icon editor. The parameters which are valid in the new icon will be transferred; you can now click Apply to save the new icon.
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