I think what the op is wanting to do is to load the example/preview loop into Maschine and then modify it. To use the preview as a starting point and modify the beat.
@MjN as D-one mentioned, there's no way to do that. However, if you click on All Projects you can then click on one of the expansion packs and load a demo project made from that expansion. That will give you a place to start and you'll be able to change things up.
You would not want that, the previews are just an audio file, low-quality .ogg files to be more precise... If it was actually pattern/midi previews would take as much time to load as the actual kit, sort of defeating the purpose. The point of a preview is to quickly listen to how a Kit or Instrument roughly sounds without loading it.
If you want that then just load the actual kit and then in Group mode use audio drag-and-drop to another Group, it will export-import for you into an Audio loop Pad.
Oh... That's just loading the Patterns normally, your not loading any previews, you're loading all the patterns in the kit.
How can I do that with the mini controller or without controller?
It is possible?
Enable +Patterns at the bottom of the Group Browser.
If it's possible on your mini controller then it should be available by holding shift.
