Numpad 1: Auto Repair - On the NEXT repair cycle (every 4 or 5 seconds in general) this option
will repair ALL subsystems that are damaged.
Numpad 2: Renown - renown lets you upgrade your sub when u get into port, its like cash.
Numpad 3: Promotion Points - Promotion points are used to upgrade the crew so they perform better.
(go into crew management for this) activates when a point is subbed from your points
Numpad 4: Deck Gun Ammo - Lots of ammo for gun deck.
Numpad 5: Torpedo Reload - Torpedos are ready to fire again sooner.