Hello James

Thanks for your post. The default setting for the line shape in a new Lucidchart document should be Elbow. If you want to set a new default line shape for your document you can do so by de-selecting everything on the canvas and then choosing your new line shape from the toolbar. Any additional lines you drag out after this point should adhere to your new setting. For more information on this please reference our article about Working with Lines in the Lucidchart Help Center. If you have further questions or are having trouble with this functionality please let me know.