Here's a quick tutorial that shows you how to import a GitHub hosted Maven project into the Eclipse IDE.

I can import a multi module project into Eclipse just fine. By default the projects are added unassigned to a working set. However, if I choose options in the Working sets section of the Import Gradle ...

If you and your projects are following suit, the good news is that Eclipse plays very nicely with Git, too, using the EGit plugin.

To import the projects, select File -> Import -> Import projects from Git -> Existing local repository -> OpticsFoundry_Sequencer_MZ -> Import existing Eclipse projects -> ...