how to enable send live metrics

[alihippo]

appInsights: { instrumentationKey: process.env.APPINSIGHTS_INSTRUMENTATION_KEY || false, // your project's Instrumentation Key here serverConnectionString : process.env.APPINSIGHTS_CONNECTION_STRING || false, serverConfig:{ "enableSendLiveMetrics" : true, } },
this is my nuxt.config.js file,

Despite I enabled sending live metrics, I can't see them on my dashboard. Is it the true way to enable sending live metric. thanks