I am trying to sketch a fuselage for an aircraft and to easily create sub-sections I need a scalable profile sketch. So far, I have managed to relate the Height of the Fuselage to the Width; whenever I change the height, the width changes in relation to the height. I did that by using the equation tools available in SW17. However I am struggling to make the splines, the most outer part of the sketch, driven by the changes of height and width. It would be great if I could manage to "scale" the splines the same way that the "Offset Entities" command is able to. I'll attach a screenshot of my sketch, and the problem that occurs when I try to adjust the height.
Thank you in advance,