murph-skeleton/core/Resources/views/site/navigation_admin/show.html.twig

{% extends '@Core/admin/crud/show.html.twig' %}

{% block header_actions_after %}
    <a href="{{ path('admin_site_tree_navigation', {navigation: entity.id}) }}" class="btn btn-success">
        <span class="fa fa-sitemap"></span>
        {{ 'Tree'|trans }}
    </a>
{% endblock %}