Can I change the ecosystem.config.yml field by cli?

I want to manage my node process use pm2 with ecosystem.config.yml. But I want to change some field such as instances, watch etc. by cli.

For example, only start one in the development environment, but start multiple in the test and production environments. I want to use it like this:
in development:

pm2 start ecosystem.config.yml --env development -i 1

In production:

pm2 start ecosystem.config.yml --env production

How can I do this?

Start by tracing the pm2 start CLI path for ecosystem.config.yml, including how --env and -i are currently parsed. Clarify whether command-line values should override file fields and how this should interact with development and production environments. Done means the requested commands have defined, tested behavior or the limitation is documented.