I recently (today) discovered that Webflow introduced support for nth-child selectors within collection lists. It looks like this works for most properties; however, whenever I try to change the column span for only the first element, it is applied to all elements. See attached:
@arronjhunt, in a collection list all the items’ Position are unfortunately set to Auto and as far as I know cannot be changed, hence the column/row override will not be applied.