With the new DK edit lineups feature can we expect and post lock editing features added in the future?
I see, if you want to change a subset of your lineups it may be more difficult, you're right. Of the top of my head the way to do it would be to preserve the crunch you used to upload the lineups. Then you can use our lineup searching feature to isolate the Kemba lineups, remove them and calculate more. However, this requires you to leave your browser tab open which can be a hassle.
For now, that's the best that we can do, it becomes a difficult process because the lineup CSV comes from your account on DK and we're not allowed to log into your account. There may be some work-arounds, but it will take some time to plan and execute.