Liferay IDE Better Maven Support

Dear guys,

Here is my images and the relevant markdown file about liferay ide better maven support.
Hi. Can you explain what kind of maven project would fit this scenario? Would it be a non-Liferay portlet that follows the portlet spec?

Also, I'm confused by what you mean with "vanilla Eclipse\-jee". Wouldn't all 3 of these cases involve importing an existing maven project to Liferay IDE?

Thanks.

cc @ngaskill