I haven't tried direct-healing through the Jamba Team frame, but it should be easy enough to set up something that will do the job if you can't directly interact with it. I currently have mine set up to do a slave-follows-slave function and individual movement control based on mouse position specifically because the display never changes order or moves. You should at the very least be able to use ISBoxer to set up buttons on or near the team frame that trigger hard-coded macros {/cast [@NAME] Heal}, so while it may not work the same as healing through the unit frames, it'll act the same way.