ok its a little bit more difficult.
Just so you know, if you go ahead with this, it might make future patches fail.
first off
open up
Sources/Load.php
search for
mem.is_activated, mem.money,
replace with
mem.is_activated, mem.money, mem.moneyBank,
search for
stars, mem.money,
replace with
stars, mem.money, mem.moneyBank,
search for
'money' => $profile['money'],
on the next line add
'moneyBank' => $profile['moneyBank'],
Almost done,
open up your
Display.template.php
search for
', $modSettings['shopCurrencyPrefix'], $message['member']['money'], $modSettings['shopCurrencySuffix'], '<br /><br />
replace with
', $modSettings['shopCurrencyPrefix'], $message['member']['money'], $modSettings['shopCurrencySuffix'], '<br />
', $modSettings['shopCurrencyPrefix'], $message['member']['moneyBank'], ' Bank ' ,$modSettings['shopCurrencySuffix'], '<br />
', $modSettings['shopCurrencyPrefix'], ($message['member']['moneyBank']+$message['member']['money']), ' Total ' ,$modSettings['shopCurrencySuffix'], '<br /><br />