Creates a new, empty UV set on the current object. You can then create the UVs in the set using one of the mapping/projection
methods. This feature is also available for use from the menu in the .
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Type a name for the new UV set in the text field.
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You can choose to share this UV set (every instance has the UV set), (all selected instances share the new UV set), or (all selected instances get a unique UV set).