Customizing for custom manager page

[matdave]

It seems like the private function for loading settings OnRichTextEditorInit should be public, or there should be some way to load those settings into a custom manager page. I'm struggling right now to get it to accept my system settings when I just try to load the class using the following method.

        $tRTEcorePath = $this->modx->getOption('tinymcerte.core_path', null, $this->modx->getOption('core_path', null, MODX_CORE_PATH) . 'components/tinymcerte/');
        /** @var TinyMCERTE $tinymcerte */
        $tinymcerte = $this->modx->getService(
            'tinymcerte',
            'TinyMCERTE',
            $tRTEcorePath . 'model/tinymcerte/',
            array(
                'core_path' => $tRTEcorePath
            )
        );

        $className = 'TinyMCERTEOnRichTextEditorInit';
        $this->modx->loadClass('TinyMCERTEPlugin', $tinymcerte->getOption('modelPath') . 'tinymcerte/events/', true, true);
        $this->modx->loadClass($className, $tinymcerte->getOption('modelPath') . 'tinymcerte/events/', true, true);
        if (class_exists($className)) {
            /** @var TinyMCERTEPlugin $handler */
            $handler = new $className($this->modx, $this->scriptProperties);
            $handler->run();
        }```