SYMBOL_
Sorts symbols by their y-position relative to the viewport if ICON_ALLOW_OVERLAP or TEXT_ALLOW_OVERLAP is set to TRUE or ICON_IGNORE_PLACEMENT or TEXT_IGNORE_PLACEMENT is FALSE.
Sorts symbols by their y-position relative to the viewport if ICON_ALLOW_OVERLAP or TEXT_ALLOW_OVERLAP is set to TRUE or ICON_IGNORE_PLACEMENT or TEXT_IGNORE_PLACEMENT is FALSE.