Is There a Terminal Command To Bring Back “Save All”?

In Preview (Mac OS), under File, there were options for, among other things, “save,” and “save all.” If you had, for instance, resized 20-photos, you could just save them all at once. Eventually that fell by the wayside and each has to be saved individually. There is nothing in Preview preferences to select that option; is there a Terminal command to bring it back?
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Arnette Heidcamp