Currently the button move two Begin of the insertionweeks (that is, simply adds the second week to the current view with a scroll).

End of the insertion Begin of the deletion weeks.End of the deletion This makes it very hard to move forward Begin of the insertionunfinishedEnd of the insertion Begin of the deletion unfineshedEnd of the deletion things from the last week. It would be easier if the buttons would allow to see the current week together with the last week.