Sections - Full width cards

New sections feature is great but it’s lacking to customize fully. We should be available to make a tile card to cover 100% of its parent column. Right now they just adjust based on the card’s default settings and not customized. What I want to do is: I have 4 cards in 1 single column and looks like below (assume groups of Xs as 1 card)

[XXXXXXXXXX]
[ XXXX - XXXX ]
[XXXXXXXXXX]

It allready exists but only in yaml

layout_options:
              grid_columns: X
              grid_rows: Y

I believe it was mentioned at the latest release party and the Project Grace announcement that ideas and suggestions regarding the new dashboard should be also posted in the Blog Post to be sure the right people see it. This is because the feature is still Experimental.
You might want to post this there as well.