Outline - increase events from 5 accross?

I have set my homepage to just show the Outline of the site - At the moment it is showing 5 events across which leaves a large margin to the right of the outline box, is there a way to increase the outline to 6 ?

many thanks

I don't think there is room for 6 across with the site width set at 1140px

To increase it to 6 it is going to need to be reprogrammed in php to do that. Feel free to message me so we can discuss this.