FilterSettingsAt
BMailAddOnSettings* FilterSettingsAt(int32 index) const;
BMailAddOnSettings* filterSettings = settings.FilterSettingsAt(i);
if (FilterSettingsAt(i)->HasBeenModified())
= _MailSettings()->FilterSettingsAt(index);
BMailAddOnSettings* settings = protocolSettings->FilterSettingsAt(i);
ref, fAccount, _MailSettings()->FilterSettingsAt(index))));
BMailAddOnSettings* settings = _MailSettings()->FilterSettingsAt(index);