I live in the latex bundle, but this feature request may be relevant to others.  I would like to be able to move blocks of text in the latex file by simply moving corresponding headers in the "Go to Symbol" sidebar.   This would replace my need to use OminOutliner to organize material.   (There seems to be no satisfactory way to port a Latex file from TextMate into OmniOutliner without a great deal of hand work.)