Invoke plug-in's menu option via a script

First some background. I’m new to scripting/programming in general. I’ve got some basics but Javascript and the InDesign DOM has me perplexed most of the time. I apologize ahead of time for the length of what follows, but I hope it better helps you, help me.
System: Win10
App: InDesign CC 2015
plug-in: InTools’ Reflective Objects

We’ve been using this InTools Reflective Objects plugin to help us with the design of a large catalog. It works pretty well, but we’d like to automate it some more. The plug-in shows up as a menu item with a drop down to choose other actions. It is one of those menu choices that I would like to script and ultimately invoke it when or right after a doc is opened. First, however I would like to get something to work by double clicking a script in my Scripts Panel. That would be a huge step forward for me. So here’s what I have so far.

Code from InTools pdf manual (2011)
//The plugin is returned as a single-item array
var reflectiveObjectsPlugin = doc.loadedScriptedPlugins (“reflectiveobjects”)[0];

//make sure objects reflect immediately!
reflectiveObjectsPlugin.handleScriptEvent (“externalReflectObjects”); (This is the actual menu item I want to invoke in a script)

Here’s some of InTool’s documentation regarding these two lines of code…
“Besides applying the settings to the objects, the plug-in can be communicated with directly. This is accomplished by sending event handlers to the plug-in. To send an event handler to Reflective Objects you must first get a reference to the plug-in. So if you get a reference to the
first item of that array you then have a valid reference to Reflective Objects. To further illustrate this point, this line of code (assuming a valid reference to a document) will return a reference to Reflective Objects in javascript:
var reflectivObjectsPlugin=doc.loadedScriptedPlugins(“reflectiveobjects”)[0] ”
– and –
“Once you have a reference to the plug-in, you can then send event handlers to the plug-in. These three event handler codes correspond to the three last menu options under Reflective Objects namely: “Deactivate Reflective Objects”, “Activate Reflective Objects”, and “Trigger Object Reflection”. To send the event handler codes to the plug-in you should do something like this: reflectivObjectsPlugin.handleScriptEvent (“externalReflectObjects”) ”

So I’ve tried these lines… on their own, in an anonymous function, in an if/then loop, etc and nothing has worked to invoke the menu item. I’m not sure if the 2011 InTools manual is outdated and is giving me incorrect terms. (eg I can’t find what looks to be a method, loadedScriptedPlugins, anywhere in the DOM documentation I’ve been using. Or is the InTools manual assuming I’ll add other code to help facilitate these lines they’ve provided? If it’s the latter, I have no idea where to start. Am I missing declaring some needed variables? Am I missing a loop or event listener or function?

I really hope someone can shed any light on this problem, because I’m pretty much stuck (and the plugin vendor has not answered support requests yet) Thanks