Yes. You can reorder the labels in a dimension via the "Layout Placeholders" tab.  Click on "Layout Placeholders" to see the current layout of your figures. Drag and drop labels as needed to reflect the appropriate order. The text "You have changed the ordering within a dimension, click 'Update Illustration' to reflect the latest changes." will appear to indicate that you have reordered your labels.

Click on "Update Illustration" to persist these changes. The order of values in the select box will reflect the order specified via dragging and dropping.

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