Define layout grid by total width
The new layout grid is great, however: it would be useful to be able to define the total width of the layout grid with a single value. Right now you adjust it indirectly by defining the margins on either side of the grid system, which is less than useful, especially for web design.
Yes please! When working for bootstrap I often need to work with a pre-defined width (usually a break point). It would be extremely useful to use a total width as the base, within which I can define the number of columns, gutter width and column width. The value that is not specified should be calculated autmatically (in my case that is typically the column width).
Even with the layout grids now available in Xd I'm still calculating those values to total a given width. Very tedious and, to be honest, very dissappointing that is hasn't been included right away.