Hi @kataoka-kHLKYB
If you know how to use the old target mapping, its not so complicated as it looks.
As i remember, added a filter to choose object within a range.
Personally i prefer more the old way of targeting, because i the new one, if you want to choose elevation target from alignment, you can't do it with the old way like with the drop down list of available profiles of alignment. You have to draw the profile in a profile view.
To access the old way of targeting, choose your corridor and then go to region properties and click the target button. It will show you the old form for targeting.
I hope i will help
