How do I change from a PR to a draft PR at github?

Question

Github release the draft PR a while ago.

I have a normal PR and I wanted to change that to a draft PR. How can I do that?

Answer 1

Update - Now Available - Jan 2020

Convert Default → Draft

This is possible now, with an option below "Reviewers" section in PR.

See: Feature Request: Switch from ready to draft in pull requests

Convert Draft → Default

To answer @marsandback comment Draft PR --> PR, just click the Ready for review

Answer 2

The feature is now available!

See: Feature Request: Switch from ready to draft in pull requests

Answer 3

You can't change now, but you can follow the feature request from GitHub Community:

Feature Request Switch from ready to draft in pull requests