SUBSIM Radio Room Forums - Minor Annoyance

Hey guys,
I'm a new subsimmer, coming from other sim related stuff. I downloaded gwx, arb, and h.sie patches all successfully and read all documentation. One thing that is annoying me is that the buttons on the top left side of the screen that take me to the conning tower and such now have additional buttons that seemingly do nothing. I am not even sure what mod adds this. Specifically they are newly added and at the bottom of the button list. One of these works however, the radar on/off button. Are these buttons supposed to have no function or am I missing something?