I think I understand what you mean...
From normal view on a shot to the green, when moving the aim triangle it will often jump way past the hole. What yo would like is a way to "lock down" yardage that the aim arc shows, so that when you are moving it, it will not show 190yards on a 80 yard approach shot.
The opposite it true as well when hitting over a hill, saw a pitch/flop shot where you cannot see the green, then the aim arc yardage might show 26 yards before moving it, but once moved to line up the shot, it may go to 6 or 8 yards. Sometimes it's very difficult to then find the aimarc triangle to put it back in view on the green.
Is this what you're saying?
If so, and to sum it up, you'd like to have an option to not allow the arc to move up 100 yards, etc, just stay at some yardage selected.