Add new type port in tab | Devices' template

Hi everyone, I have got questions :

In which case the “Description” page in “Port” tab is useful ?
Can we add custom button is this same section (i.e. under customer, add a “Collection” section)

Is it possible to deploy routers and to add it in a “template configuration”. i.e. On piece of routers, I don’t need the CPU check. Is it possible to deploy them in a template that disable this check. The goal is to allievate my LibreNMS server’s load.

Thanks for your help !