Configuring Warm Spare - where configure distinct uplink IP?

[kev2five]

Hi all, 

I've read the MX_warm_spare_-_high_avialability_pair document

I understand to configure my static ip on my wan via the local status page. In all the examples it just shows the VIP address, where do I configure the distinct uplink IP and choose MX uplink IP? 

Thanks, Evan

[ww]

https://documentation.meraki.com/MX/Monitoring_and_Reporting/Appliance_Status/MX_Uplink_Settings#WAN

https://documentation.meraki.com/General_Administration/Tools_and_Troubleshooting/Using_the_Cisco_Me...