"When I open Emacs in Chrome extension ""Edit with Emacs"", it opens in a separate window."

I am using Chrome extension Edit with Emacs, but it seems that it opens a new window instead of an existing one, but if there are Emacs that are already open, is it possible to open a new buffer there?

There was a countermeasure written in the setting when using Chronium OS, but I didn't know how to set it when using MacOS.

How do I set it up to open a new window in an existing Emacs?