Sometimes UV unwrap has several nearly identica islands. However, more often than not they differ a little. If I want to keep identical texture for these -- is there a good way to overlap them perfectly? I know I can do it vertex by vertex, but I hope there is a better way.
I know I can do it for the whole model if it is symmetrical with Symmetrize option from mesh menu. I am talking about selected islands, not all of them.