How to maintain same endpoint URL in deploying event map from one org to another org?

We are maintaining different orgs to have environments(Eg. DEV, QA , PROD etc). If we want to deploy the changes we have done in one environment to other by exporting and importing a new endpoint will be generated every time we do it. Tried copying and pasting, however most connector blocks has been grayed out and can't be configured. Any suggestions?


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