Loop through tag frames

Is “Loop through tag frames” responsible for looping onion skin inside a tag only, or it should control full frame looping inside a tag? If it corresponds to the first option, there should be a way to disable tag looping completely, it’s quite usable for marking different parts of animation, working on it while looping a tag, and just disabling looping after, while still being able to see them. I know that you can select a frame outside a tag to disable looping, but another switch would be usable too, if it’ll be an easily accessible.
In addition, three positions may be made:
Loop always – looping any tag that animation entering while playing.
Standard – current looping policy, looping only tag that you in while clicking play.
Loop never – nuff said.