Book template: trading locations

Ramesh, can the following trading locations be added to the list of selectable locations?

TEXAS WEST
US GAS EAST
US GAS WEST

Here is the existing list:

AUS POWER
CAD GAS
CAD POWER
CONTINENTAL PWR
EURO STEEL
JAPAN GLOBAL PRODUCTS
PORTLAND GENERAL ELECTRIC
SA GAS
SA POWER
SING GLOBAL PROD
UK COAL
UK EBS
UK GAS
UK GLOBAL PROD
UK PAPER
UK POWER
UNKNOWN
US BRIDGELINE
US COAL
US EBS
US EES GAS
US EES POWER
US EMISSIONS
US ENOVATE
US FINANCIAL
US FREIGHT
US GAS CENTRAL
US GAS CLEBURNE

Please advise, thanks!

Andrew