When you open a document to translate, its segments will appear sorted in the natural order. That makes sense. Most of the time. But consider this (real-life) example:
Click to enlarge
Yesterday I had to do a financial document. I sorted the segments alphabetically, so I did all the numbers first, which was the idea behind it. Then I wanted to toggle that setting back to "Natural" - I didn't do that for the 180k words job - but I couldn't find out how. Igor came to the rescue on the CafeTran support site (Where I post under my daughter's name, for no good reason):
Uncheck the View | Project segments filter or toggle the filter icon next to the Search box [to the left of it -HvdB] to go back to the "normal" view of the segments.
Yet another "problem" solved.