The output goes into the text field where I'm editing. That's not a REPL. Usually printing output to a random text field makes no sense. It can make sense to execute commented code snippets in code, or evaluate code and have the result being inserted.

A transcript window is usually a text output window, more like a console output. I'd say the Workspace window is slightly similar to a REPL. But it still does not work like the usual Lisp REPL, where you type to the tool usually textually at the bottom and get the result displayed there. With Smalltalk I usually type to an editor Workspace window and REPL I/O does not need to have a sequential order.