I noticed a question about charting direct descent that went unanswered on the ancestry.co.uk Family Tree Maker software forum (actually, there was one answer, but it said there was no feature to accomplish this). Here is the kernel of the question:
“Along these lines is there a way of naming two people and creating the chart showing how one is descended from the other?”
There is a way to do this. It’s called a relationship chart. In this video I show you how to create a relationship chart that shows direct line of descent.