Using message box

[Bill]

I have been using the message box all along like this:

Put variable

Or put "whatever"

And the result comes out in the message box. The problem with this is how do
you search for that event in a whole lot of code. You can't search for "put"

So I want to say "put whatever into messagebox" only that doesn't work. If
you ask the message box what it is called then you get stack "message box"
so what I need is either:

How do you search for a put that has no "into"

Or what is the line in the message box called so that in the future I can
name it explicitly?