" href="../../docs/pt-BR/extend-system-designer.html"><span>Extend System Designer</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#what-are-extensions-">What are extensions ?</a></li><li><a href="#install-an-extension">Install an Extension</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">System Designer is distributed under Apache License 2.0 - Copyright © 2024 Erwan Carriou</section></fo