func (l *List) Next() {
	max := len(l.scope) - 1

	if l.cursor < max {
		l.cursor++
	}

	if l.start+l.size <= l.cursor {
		l.start = l.cursor - l.size + 1
	}
}
func (l *List) Next() {
	max := len(l.scope) - 1

	if l.cursor < max {
		l.cursor++
	}

	if l.start+l.size <= l.cursor {
		l.start = l.cursor - l.size + 1
	}
}
// Next moves the visible list forward one item. If the selected item is out of
// view, the new select item becomes the first visible item. If the list is
// already at the bottom, nothing happens.