Tricia,
You can use CVS/SVN or Git.While MyEclipse has built client support for CVS, you will need to install the Subclipse/Subversive plugin to MyEclipse for SVN client support and EGit plugin for Git support. The plugins must be compatible with the base Eclipse version of MyEclipse. Ex : If you are working with MyEclipse 2015, then the plugin must be compatible with Eclipse Luna 4.4.
To setup a new CVS repository in MyEclipse, you can right click on your project > Team > Share Project and follow the wizard.
Here is a tutorial for CVS in Eclipse. You can follow the same steps for MyEclipse : http://help.eclipse.org/mars/index.jsp?topic=%2Forg.eclipse.platform.doc.user%2FgettingStarted%2Fqs-60_team.htm
Hope this helps.Let us know if you see any issues.
–Swapna
MyEclipse Support