/bind numpad4 "netgraph 1"The core of the whole system. /bind attaches a command to a key; the command goes in quotes. Anything you can type into chat, and every internal engine command, can be bound this way.
Fires the injury or healing potion slot without opening a menu. Binding consumables is the single biggest survivability gain a new player can make.
/bind q "InventoryExecuteSlot 0"