Hi!
You may try a to hack config.class.php:
//$this->googleMapsApiKey = $this->getValueFromDB("google", "googleMapsApiKey");
if ($_SERVER['HTTP_HOST']=='www.domain1.info') {
$this->googleMapsApiKey = "ABQIAAAAghEL0NcBvDhWKMj4E_lvZRSiS3wFlvUDvSmOtGhoSvKuGSvSnhQ4j0bw5IdiVcBLGgdk0g_dyuN5Gg";
} elseif ($_SERVER['HTTP_HOST']=='www.domain2.info') {
$this->googleMapsApiKey = "ABQIAAAAghEL0NcBvDhWKMj4E_lvZRRJVwckG9VcWmyzwH7h3afePhjBxRQ_6afy5KW_-lLivg4yGt08qGYuAw";
} elseif ($_SERVER['HTTP_HOST']=='www.domain3.info') {
$this->googleMapsApiKey = "ABQIAAAAghEL0NcBvDhWKMj4E_lvZRSC5iyYp-TnoUBU9-1uZtzkG_LpdhR_ryvqEL-NQE7mgPs2C0lPw8SkjA";
} elseif ($_SERVER['HTTP_HOST']=='www.domain4.info') {
$this->googleMapsApiKey = "ABQIAAAAghEL0NcBvDhWKMj4E_lvZRSxpPcLM7BgsIf1AX1SRjh9LgLYtRTlHwTQ1L5GaPqOznfhb3ykqnCaOg";
}
DO NOT use my exact code, insert your own. This is for multiple domains on one site.
Let me know.
Thanks!