Scroll select control for user interfaces

One or more non-transitory computer-readable media storing instructions for adding items from a set of unselected items to a set of selected items, wherein, when executed by one or more computing devices, the instructions cause:

• displaying, on a screen of a device, a user interface that includes a list of visual indicators;
• wherein each indicator in the list of visual indicators corresponds to an item in the set of unselected items;
• establishing a particular scroll position on the screen as the scroll position for automatically selecting items that correspond to visual indicators that scroll beyond the particular scroll position in a first direction;
• wherein the particular scroll position is established at a fixed position on the screen that allows each visual indicator in the list of visual indicators to be fully displayed on the screen before the visual indicator is scrolled in the first direction beyond the particular scroll position;
• without changing the position, on the screen, of the particular scroll position, performing:
• receiving user input that scrolls the list of visual indicators;
• determining whether the user input scrolls the list of visual indicators in the first direction or a second direction that is opposite the first direction;
• responsive to determining that the user input scrolls the list of visual indicators in the first direction:
• while the list of visual indicators scrolls in the first direction:
• detecting when any visual indicator in the list of visual indicators scrolls in the first direction beyond the particular scroll position;
• responsive to detecting that any visual indicator in the list of visual indicators scrolls in the first direction beyond the particular scroll position, performing the steps of:
• automatically adding the item that corresponds to the visual indicator to the set of selected items;
• marking the visual indicator with a first visual indication that indicates that item that corresponds to the first visual indication is a member of the set of selected items;
• responsive to determining that the user input scrolls the list of visual indicators in the second direction that is opposite the first direction;
• and:
• while the list of visual indicators scrolls in the second direction:
• when any visual indicator marked with the first visual indication scrolls in the second direction to a position in which the visual indicator is no longer beyond the particular scroll position, continuing to display the visual indicator with the first visual indication, and continuing to include the item that corresponds to the visual indicator in the set of selected items.