A couple of questions regarding Battle Meditation, specifically the Control Upgrade that allows you to make a Leadership check as part of the check.

1) Say you are able to add your FR to Leadership checks (via Influence or Enhanced Leader). Do you thus roll your FR twice?

2) If Success allows you to send simple mental commands, what would be reasonable to do with Advantage and Triumph? Passing around Boost and Upgrades certainly make sense to me. Maybe increasing defense? Maybe removing an opponents Defense?

1) nope. Your Force Rating is already spoken for.

2) all those suggestions are great! I would try to keep the narrative first, mechanics second (to keep the creativity high), but yeah just refer to that chart in chapter 6, spending Advantage & Triumph in combat for a good lot of suggestions.