You can change anything until the settlement is signed.
A few thoughts because of your contentious situation. Write down your fears, then consider what works. Share with your lawyer. For example:
Passports: Each parent holds onto one of the children's passports. Include that the other parent has to get the consent of the other parent in writing for trips outside of the country including itinerary within a certain time frame.
For distances across oceans, or countries without US borders, the requirements could be tougher.
When the trip is over, the passport is returned within X time frame, with some penalty associated.
For me, this would be based on a 'flight' fear, or the spouse just wanting to be a jerk. I guess it's assuming difficulty (like her not giving you passports when needed)
Moving Radius: Find out the extent of the radius and adjust the radius based on driving/land based distance mileage.
Your almost ex spouse controls through batchitt craziness, being unreasonable. How can you legally counter this type of terrorism?
Identify your needs. Tell your lawyer to fix them.
Of course, the lawyers in this group and those more experienced can advise you better.
