https://forums.autodesk.com/t5/fusion-design-validate-document/centrelines/m-p/5544414#M300927 <P>Hi Andrew,</P> <P>It is not possible to add centerlines in Fusion 360 drawings yet, but we are activily working on it. &nbsp;I can't commit to the exact release date yet, but will update this post when I have more information. Thanks for posting your question.</P> <P>&nbsp;</P> <P>Kris Berg</P> <P>Fusion 360 Development</P> Tue, 17 Mar 2015 13:59:46 GMT kris_berg 2015-03-17T13:59:46Z