it all becomes more clear, when you let us know what kind of a heel you want to turn.
I know, a sock heel
But really: there are many different ways to turn a heel. And they are all interesting! I basically work by 2 methods and they both work fine. I am currently enlarging my knowledge as I have started with Wendy D. Johnson's book about toe up socks.
These days I really prefer the bumerang heel. That works with short rows and is explained in many different patterns with many different little specs about it.
That for example is a heel that can be turned by magic loop knitting without any adjustments (except for ignoring the rest of the sock on the cable for a while.)
I bet it is this way with most heel variations: ususally you work the heel stitches only for a little while and just ignore the other stitches that rest on the cable.
That brings the following consequence: Put the heel stitches (all the ones you need) on one side and all other stitches on the other side of your magic loop set-up. Then just work by instruction.