Is it possible to import multiple maven projects within a single workspace? Also is it possible to build directly from eclipse to an AEM author or publish or both instances?
Yes, you can import multiple maven projects. You need to have Eclipse Maven Plugin. Then following steps can be used to import projects to workspace
File -> Import -> Maven -> Existing Maven Projects -> Browse Root Directory
You can deploy the Project to AEM using maven build profiles. In pom.xml
you can add build profiles, and using maven you can specify particular profile while installing.