`plugins: [
    'grapesjs-custom-code'
],
pluginsOpts: {
    'grapesjs-custom-code': {
            propsCustomCode: {
                components: {},
            },
            commandCustomCode: {
                handleSave() {
                    const keyCustomCode = 'custom-code-plugin__code';
                    const { target, em } = this;
                    const code = this.getCodeViewer().getContent();
                    target?.set(keyCustomCode, code);
                    // eslint-disable-next-line
                    editor.Modal.close();
                    em.getSelected().view.render(); // this is important part
                },
            }
    }
}

    `view: {
        onRender({ el }) {
            setTimeout(() => {
                if (el.offsetHeight === 0) { // no content or without height. It should be clickable 
                    const defaultEl = document.createElement('p');
                    defaultEl.classList.add('p-4', 'border', 'border-dark');
                    defaultEl.textContent = 'Default embed code placeholder';
                    el.appendChild(defaultEl);
                }
            }, 500); // If we have some script with src, then we should wait for load
        },
    },
});`