To
copy UVs from one existing UV set to another
- In the UV Texture Editor,
select the UVs you want to copy.
- In the UV Texture Editor,
open the Polygons > Copy UVs to UV Set sub-menu
and choose a UV set.
Notes
- When polygon UV sets are copied with
history, the source UV set is linked with the destination. Any changes
made to the source UV set by using construction history, will influence
the copied UV set. To avoid this issue, delete construction history
after copying the UV set.