I'm sorry, English is not my native language, I can't fully understand what you write :)
But, this `, init:stop(). ` we need to kill `erl`, because it can't be killed by itself. ;) The code should be simple expression, there is no support for functions for example, because now that command (in this pull request) only can do some simple things (printing, for example) yet. But I'll do my best to understand how to use real `REPL` with this awesome plugin :)