[ACCOUNTID]
Scripts can be added in the <head> section at the menus
SETTINGS->BOOKING ENGINE->MULTIPLE PROPERTIES->DEVELOPER
or
SETTINGS->BOOKING ENGINE->DEVELOPER
For example: this would cause property 1234 to open in the parent window (frame busting) when it's book button is clicked on the multiple property page
<script>
$(document).ready(function(){
$('#propid1234 a').attr('target', '_parent');
});
</script>