• Name of project to become the parent project:
• Name(s) of project(s) that should be converted:
• For each of these projects describe whether it should be a subproject or a milestone:
• If the converted project(s) will become a milestone: Milestones cannot have members, therefore, what should happen to the members of that project? There are two choices: Either the members get added to the parent project, or the list of members is discarded when the project becomes a milestone.

Note to Phabricator administrators: Follow https://wikitech.wikimedia.org/wiki/Phabricator#Converting_a_parent_project_into_a_subproject