Sadly one can only go to a specific field by script with Goto Object. But that needs a named object - more and not needed work.
a) Give every object and field a default name. If I have a field for "Family name", why not name the appearance/object "Family name", too. Manually I wouldn´t do any different. If there are more than one appearances of the field, just number them. This would save manual object naming I guess in more than 90% of all cases.
b) Allow the Goto field script step to go to a named field. If there are more than one appearances of the field in a layout, again number them like repeating fields. This could make Goto Object with a named field obsolete.
Would be best, to realize both.