Slack has threaded messages to avoid clutter. Unfortunately, not everyone is disciplined enough to start a thread when they answer a message.

When that happens, is it possible to either:

1. Move a message to another message, and start a thread that way?
2. Or start a thread on the original message, and then move the answering message to that thread?

I have a feeling the answer is 'no'. I can't find anything in their [api description](https://api.slack.com/messaging/managing) or their [feature description](https://slack.com/intl/en-no/features).