I have a long established public right of way running along the boundary of one of my fields. It enters and exits my land. About ten years the county council included the entire right of way in the county development plan. When they mapped the piece crossing my land they show it in an adjoining field, not the one it's actually in. It would suit me if the path followed this 'preserved' route rather than the actual one. The degree of change from it's current position would not be significant, ranging from 3 to 10 metres, repositioning it on the other side of a wall. How easy / difficult would it be to effect this change?