Setting {{baseUrl}} when generating a collection from an OpenAPI spec

Context

I’m working on consolidating our OpenAPI spec to Postman.

Problem

Currently, when generating a new collection from an OpenAPI spec, all the new APIs within such collection has {{baseUrl}} in their request URL. This presents a slight inconvenience, since we already have environments setup with an appropriate endpoint.

I’ve looked around, but it does not seem like it is possible to change this variable to that we already have.

Question

What is the best/recommended way to approach this, aside from manually changing every API to use the correct variable?

Thank you.