Ahh, Well the swap function in the script I linked will swap the contents of the selected UV set with the last uv set. So if you have map1, UVset1, UVset2, and you select UVset1 and click swap current UV set, it will move the UVs of UVset1 to UVset2 and vice versa. It doesn't switch the position of the names though, so it…