Admin - How to lock out XER/XML/etc exports

Hey all, I have searched and can't find this topic.

I currently have a global profile for planners who can see cost in their schedulers. I also have a global profile for planners who cannot see cost in their schedules (it's locked out for them).

The problem is that the planners who cannot see cost can still export an XER, import to another P6 instance, and now see the cost.

1. How can I lock out cost from being exported in an XER. (I assume I can't change this)

2. How can I lock out planners from exporting XER's at all. (If I can do this then I can have the planners come to the admin to get an XER without cost)

Thanks for any suggestions.