Connecting points in a graph

OK, I've had a look at the Word doc. I see two charts with many data points. They look great. A JPG of GIF of the same screenshot would have taken a less lot bandwidth, by the way.

I don't see any explanation of what you want to achieve and no examples of what you want to do, nor any logic that leads to the results, which aren't illustrated anyway.

What to do? Create a sample Excel file with just a few data points that follow the same principles as the chart in your Word file. Create the chart that goes with it. Use dummy data. Then upload that file here and explain what you want to do. Use the drawing tool to create lines that you can't create within the chart. Explain the logic that leads to the lines.