How to configure datastream id dynamicaly

@yashre1  You can create data element and add below custom code to set dynamically based on environment type.

var libEnv= _satellite.environment.stage;
if (libEnv == "staging")
{rsid= "Enter staging data steam id";}
if (libEnv == "development") {
rsid="Enter development data steam id";}
if (libEnv == "production"){
rsid="Enter production data steam id";}
return rsid;