Is it possible to run a ForEach in a ForEach with Ultimate Toolkit plugin?

I have a scenario where I need to run a “child” ForEach inside of a “parent” ForEach and can’t seem to get this to work. I can trigger the child ForEach just fine. The problem is the parent is a bad parent and doesn’t wait for the child to catch up. :stuck_out_tongue:

Is it possible to “pause” the parent ForEach until the process finishes?