Postman Collection Explorer does not use postman environments

[william-wallace-simplisafe]

Describe what you'd like to have
The Postman Collection Explorer, while able to execute single requests, will not recognize postman environments and gives no means to read environment variables, or import postman environment files.

Explain why you want this
Executing a request where the url is defined using an environment variable is not possible without the ability to read environment files

Additional context (optional)
A possible solution might be

1. Provide the ability to read a Postman Environment json file and store the environment variables and use them in the execution of single requests
2. Provide the ability to read environment variables from the shell environment, allowing users to export shell environment variables that would be read into the Postman Collection Explorer