In Scrivener 1.5 the context menu on the corkboard (right-click) included a choice for the number of cards across. In Scrivener 2.0 the only way of accessing this feature is in the ‘Menu’. Can this be also included in the context menu for the corkboard again?
Click on the corkboard options in the footer bar instead:
Great! Next time I’ll read the manual 
And next time I’ll be sure to paste in the correct image link (now fixed). 