In the PAGE tab under Layout is a choice of Fixed or Fluid. I would like to see a blog article explaining how these 2 work and how it affects your layout in different device settings or breakpoints. Does the fluid setting use a grid and containers? The Blog tutorial on Prototyping was very good. It would be great if we had one using the fluid layout walking us through making a page/site. I know I can look at bootstrap but that's not going to have the TT interface.