Exporting - ISSUES with the video if only exporting pieces of content vs whole sequence

One thing the video does not help with is this:  You need to look to the left bottom and see SOURCE RANGE and turn from the In/Out default (or I think it is the default - Aamir Khan at the help desk decided to be disrespectful 3 x and refused to answer any question - just kept pointing to a video that DID NOT solve the problem) to the correct setting - ENTIRE SEQUENCE if you are not rending the whole sequence.

Hope that helps someone save the 7 hours I spent today on my vacation day to try to solve repeated issues with a software in serious need of better help tools.  Not knocking MOST of Creative Cloud - it's slick and pretty intuitive.  But these little quirks don't get covered, and the repeated use of the help desk to point me back to videos I already watched - where no answer is available - is frustrating at best.