In general, lawyers are going to want the language to apply to both parties, unless you can make a good case that things only apply to one party... .
You may start off with: Kids can never be left alone with grandparents.
Knowing that you will agree to: If kids are with grandparents, ex must be present.
Or something like that. Unless you can show that there is gross neglect involved with the grandparents (court won't like any restrictions to extended family... .unless substantiated).
That was my case, the ROFR applied to both of us but it was virtually impossible to make ex inform me of times she wouldn't be with son unless she wanted to tell me.
Also, ex didn't want my parents to care for my son, triggered by my family. By the time it was put into the final older he was in school and they were mid-to late 80s. Both have since died. Due to their advanced age, I didn't see that as an issue but I did make sure the ROFR excluded ALL grandparents, not just my side of the family.
Also, despite our shift then to equal time Shared Parenting, I could tell that ex saw herself as still calling all the shots and I knew she'd try to encroach on my parenting time while I was working. So I had a clause added that our daycare facilities were 'equivalent' to school and ROFR didn't apply there. Yes, she could still visit our son there on my time but she couldn't take over. My time remained my time, just as it was mine when he was at school during my time. It turned out that it was just about the best clause I inserted!
A few years later, as son was older and I was getting more time and responsibility, I had it dropped with GAL's agreement when I became Legal Guardian in a new order.
Yes remember that anything you put in there will also apply to you. Which means you (being the rational person) will follow the order and the other parent (being completely irrational) probably will not. And it is difficult to get enforced.
Judge basically said to my DH "You can do what you want on your time, she can do what she wants on her time" and that was it.
This is crucial... .if your issue with ex is that ex will intrude on your parenting time, you may want longer ROFR time triggers. (As I noted above, I had daycare declared equivalent to school so ex could not take over while I worked.) But if your issue with ex is that ex will not let you step in when ex is absentee, you may want shorter ROFR time triggers. (Mine was 4 hours which was okay at first but too short as my son got older.)