Just a quick list of items which add additional functions:

-fireworks
-MVAM Console -- 3 button mapping needed to fully use
-Photonic Shockwave torp console
-Thunderchild's point-defense turret
-Gladius Console's escort thruster module
-Borg Set tractor beam
-Breen Set power siphon

How about adding a 4th row of buttons, thereby expanding the available button grid from 3x10 to 4x10?