Occasionally I require to combine 2 spots. I can use them yet usually it is not hassle-free (coping, short-lived documents and so on). Exists a device to combine spots (thinking they are not contrasting)?
If you're interested in keeping the source, you can place it right into a version control system, add spots to it, and also get the spots you desire from it.
If you take care of spots usually, after that you might want quilt. I think it has a spot mix attribute.
See Quilt (software) for even more details.