It depends on what you mean by order. There are several options for sorting based on filename, etc under the Gallery Settings (Tools-->Gallery Settings).
If you're talking about preserving upload order, well, that can't be done. You can add a 001-999 in front of the filename of each image and then sort them by filename to achieve this.
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If you're talking about preserving upload order, well, that can't be done. You can add a 001-999 in front of the filename of each image and then sort them by filename to achieve this.
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