Mix & Render Only Selected Region of Multiple Tracks?

Windows 7
Audacity 2.2.0

I have several synced stereo tracks. I would like to select a region in three of those tracks; and then mix & render to a new track only the selected portions of the three tracks. Is there a way to do this?

Thank you.

DG

Do you want those sections to also be removed from the original tracks so as to leave the unselected portions in the original tracks?