I know this is an old question but I thought I would offer an answer anyways in case anyone else has had this problem. You can change the ordering of scopes on the screen by using priorities. Right click on each xPC Target Scope block, click "properties," and enter a number in the box for "priority." The ordering will now be determined by the priorities with the lowest priority executed first.
Example: If I wanted my three scopes to be ordered properly, I would likely use a configuration similar to this. The actual priority values don't matter as long as they are ordered and are executed when you would like them to be in relation to your other blocks.
- Scope1 - priority 11
- Scope2 - priority 12
- Scope3 - priority 13
