Registering custom plugins when using code copied from node_modules and tinymceScriptSrc

[viveleroi]

I'm setting up tinymce React integration using this project and it's my understanding that I need to copy files from node_modules/tinymce to the public directory, and then use tinymceScriptSrc='tinymce/tinymce.min.js' to point to the correct script. That's fine and I have it working. For example this is detailed in this discussion: #182

My question is, how am I supposed to register a custom plugin? I can't import tinymce and use tinymce.PluginManager.add because that's referencing a tinymce script other than the one the react component will load.

In tiny 5, I had used this setup code in the init prop:

      setup: (editor: Editor): void => {
        editor.editorManager.PluginManager.add('revisor', pluginFunction)
      }

But that's not valid in tiny 7 anymore and I can't find any access source to PluginManager through the editor object anymore.