Thank you for the comment. I try to remain calm and let Rommel make the choice of what to do. All I do is make it rewarding when the choice he makes is the one that I am looking for. That way, there is no tension and he is much more likely to repeat the action as it was one he chose for himself anyway. The path of least resistance is always the best one.
I found a video from one of my heroes, Emily Larlham, showing how to train multiple dogs with the clicker.
I appreciate that maybe doesn't specifically answer your question, but without seeing exactly what your own two dogs do in that particular training situation, I couldn't offer any reliable or useful advice I'm afraid. My immediate thought would be to first train them separately if that is practical.