On my menu item for Front Page Posts, there is a dropdown list to select "# Items Per Page." But the choices given are in 5 post increments. I do not want to display 10 posts on that page, but would prefer an option to display 6 or 8 posts. The reason an even number is important is that an odd number in my two-column format is asymmetrical and ugly.
How can I display only 6 or 8 posts per page?