How to create a second instance

Hello, I’m new to GenieACS and to ACS in general.
I’m trying to setup a Huawei 8141A5 with the following WAN:
1- DHCP for TR069
2- PPPoE for internet
3- DHCP for VOIP
So far I got the first 2 WAN, the TR069 is configured via OMCI and the I have this config on GenieACS for de PPPoE

declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*", null, {path: 1});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.*", {path: now}); //Refrescar nodo
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.Name", {value: now}, {value: "Internet"});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.ConnectionType", {value: now}, {value: "IP_Routed"});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.X_BROADCOM_COM_IfName", {value: now}, {value: "ppp0.1"});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.NATEnabled", {value: now}, {value: true});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.X_BROADCOM_COM_FirewallEnabled", {value: now}, {value: true});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.Enable", {value: now}, {value: true});
declare("InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.*.X_HW_VLAN", {value: now}, {value: 51});

But I’m unable to create a second WANIPConnection no matter what I’ve tryed.
Any help will by appreciated.

(offtopic)
The forum doesn’t work with firefox.

Thank you.
Regards.