API SetCurrencyBackpack

Alters the backpack tracking state of a currency.
 SetCurrencyBackpack(id, backpack)
== Arguments ==
; id : Number - Index of the currency in the currency list to alter tracking of.
; backpack : Number - 1 to track; 0 to clear tracking.
== Notes ==
* This function affects the isWatched return value of .
* Information about watched currencies is accessible using .