As you are opening 2 sessions, you may be using 2 terminal sessions there. Within one, when you need to do some activities, is it referring to another terminal screen?
if yes, may be consider using either/combination of below activities to ensure you are referring to the right screen at the moment and bring the one needed at the moment to focus provided there is some text different in both environments.
You can try this approach: Use Attach Window to focus on the first terminal window. Then use Send Hotkey:Alt + Space then M (for Move) and then Arrow keys to shift window position and then send Enter to finalize.
You are right. I’m using two terminal sessions. However, setting the focus on one or the other won’t solve my problem, because there are moments when I need to take a screenshot of both terminal sessions. If it were possible to have one next to the other, that would be perfect. That’s why I need to move one screen to a different position.