It would be nice to be able to set a plane for dimensions on a drawing sheet for models like tubing assemblies and hole features that don't fall on a flat plane, so that when dimensioning you can create all dimensions from the centerlines. These drawings will allow dimensions from certain points on the model, but attempts to dimension from the centerlines typically give degrees or offset dimensions unusable for the drawing. Drawings usually give an option for "use sheet plane" but it isn't available for tubing assemblies and other round parts where features fall on different planes in the model.