There's lot's of flexibility in what you can export, from any node in your content structure to content types, linked pages, dependent content types, etc.

Here's a description: http://webhelp.episerver.com/latest/cms-admin/exporting-importing-data.htm 

There`s no support for exporting multiple pages with different parents, so you would need to do this 30 times or create something custom. This should definitely be built in functionality. @Bob can this be added to the backlog?

I have created a feature request for this.

Since you are already on this case, we would like a feature to export a parentpage without exporting it´s children.

For instance, we have a customer with a parentpage that we would like to export > import to our dev enviroment without getting all 500+ childpages. 

Hi Peter, that feature is actually work in progress at the moment, so stay tuned for the weekly releases. :-)

Hi Peter,

A new and improved version of the import/export feature was released on December 5, 2016 in EPiServer.CMS.UI 10.2.0. Here's a link to the feature description: http://world.episerver.com/documentation/Release-Notes/ReleaseNote/?releaseNoteId=CMS-4114.

And here's a blog post explaining the new functionality: http://world.episerver.com/blogs/Johan-Bjornfot/Dates1/2016/11/exportimport-improvments/ .