Navigate to a specific X value within the points array and invoke callback with new position.
An exact match on preferredRow wins over one on any other row. A layer
switch away and back calls this with the X the reader left at, and
resolving that to the first row holding it silently moved a reader on
line 3 to line 1: same X, different series, and every Up/Down from then
on started from the wrong one.
Navigate to a specific X value within the points array and invoke callback with new position.
An exact match on
preferredRowwins over one on any other row. A layer switch away and back calls this with the X the reader left at, and resolving that to the first row holding it silently moved a reader on line 3 to line 1: same X, different series, and every Up/Down from then on started from the wrong one.