Is there any way to make a Form layout have one view in the left column take up 2/3rds the screen and the right column take the remaining 1/3rd? 

The even split doesn't work and it it would be useful for us to display the Item view of a project we are working on in the middle while allowing us to place in that right column a List view of "Comments" related to that specific project.  This doesn't work right with both Views getting even "screen width".

I tried to do this by going from the horizontal to vertical layout, but that doesn't work out right.