Move custom views by 1 day instead of the custom amount

At the moment a custom view displays the current day plus the logical amount of additional days. I would like to be able to see some (probably 1 or 2) amount of previous days, the current day and logical amount of remaining days.

And or if I select the 4-day layout and press the back button, I usually want to go back 1 day instead of the previous block of 4 days. Perhaps this could be made configurable?