Insert text in AppleScriptObjC Explorer

I would like to create scripts with snippets of text to insert in a AppleScriptObjC Explorer document. I haven’t had any luck so far. Any suggestions.

Thanks

Will this fit the bill:

tell application "AppleScriptObjC Explorer 2"
	if exists document 1 then
		set selection of document 1 to "Blah blah blah"
	end if
end tell

Or am I mis-understanding?

Thank you!