If I understand you correctly you have tier1 env where DW is enabled and you want to have another CHE where you want to have the same set up. As a part of power platform integration during new environment deployment environments gets linked in LCS. You just have to run wizard to link your F&O environment to dataverse environment for dual write. After that you can enable your maps as you have done in your other tier 1 instance.
If you want data similar to your first environment don't link new F&O environment through wizard. First complete a data restore from another environment and follow steps given in below docs article and then link it using wizard. after that you can perform initial sync and run the maps as required.
docs.microsoft.com/.../relink-environments
You can have multiple environment which have 1:1 relation /linked with each other with power platform integration.
for example -
Dev(FO)< -> Dev (Dataverse)
Test(FO)< -> TEST(Dataverse)
As I said earlier , if you are deploying these environments as new, DW core solution is installed for you and other packages you have to install as per your requirement. As of December 2021, everything was getting installed as a part of environment deployment.
You can import your custom solutions and proceed with DW linking from F&O wizard and enable your maps.
However, scenario get tricky when you have existing dataverse environment and deploying new F&O environments which you want to connect to existing Dataverse environment.
