I have one specific project that currently uses the 'Two Columns (Right Wide)' dashboard layout because they have a lot of information to convey on their dashboard, but it is getting a bit unwieldy due to the length of their pipeline (6+ steps). This is resulting in an extremely wide dashboard page that can be a pain to use when interacting with the pipeline widget.

What I'd like to propose is to have a dashboard layout that takes the existing two and three column layouts, but adds one full-width "row" at the bottom (screenshot will be attached, for clarity) -- It seems like modifying the existing layouts should be possible to support this, but I would also be content with new layouts as well.