Hi Rick

Thanks for reaching out on the Lucidchart Community!

To modify the path of a line in your diagram follow these steps:

1. Select a line by clicking on it. A blue box will appear in the center of each of its legs. If you hover over a section of the line a lighter blue box will appear at the quarter mark of that leg.


2. Click and drag one of these blue boxes to change the path of that section of the line.

To create a line that moves independently from a shape toggle off "line connections" in your Page Settings (File > Page Settings) on the right of your canvas.

Turning off line connections will allow you to move a line in isolation by clicking your arrow keys.

For more information on creating and using lines please check out the Work with Lines article. Hope this helps!