Add all users of a project to another project
Description
Soon you'll be able to add members of a group to another project: https://gitlab.com/gitlab-org/gitlab-ce/issues/19868
It would make user management very easy if you could do the same with projects.
Proposal
Do the same as https://gitlab.com/gitlab-org/gitlab-ce/issues/19868, but for project members:
Links / references
- Part of larger issue #19860 (moved)