Add static route

hello, i need to create a static network route, is this possible from the GUI? I saw this similar request d wait 2 years ago

https://community.vitalpbx.org/forums/topic/network-ip-route-being-erased/

No, it is not possible from GUI, but here is a link explaining how to do it from the Linux console.
https://my.esecuredata.com/index.php?/knowledgebase/article/2/add-a-static-route-on-centos

thank you, too bad the implementation has not been carried out, I often need the operator trunk sip to go up on one link and the internet traffic, remote maintenance via another