Fontawesome have 519 icons and I use around 15 or 20 only.
I would like to upload only the icons I need. [Locally] [not CDN]
There are some way / guidelines to use.. eg https://icomoon.io/ or http://fontello.com/
in Xenforo and only load only some icons of fa to save resources?
I did this but in other software. using https://icomoon.io/
The process was simple. just import the fonts files to icomon.io -> add the additional icons that you want -> download the new fonts -> upload those fonts to your server -> add the CSS and done.
It was apparently easy because there is a good tutorial to do this.
Any idea how to do the same in Xenforo?
Nope. I don't know about those plan$.. but much better build manually your own kit, upload to the new icons to the server, add the CSS's and enjoy forever and free.
I'll try to do that using this this addon of @BassMan and editing the files directly with icomoon following the steps of the other tutorial.
Well, I already did this using https://icomoon.io/ and is ridiculously easy.
Basically I've created my own kit with 30 icons, I've changed the name of the fonts and the CSS names exactly with the same format of FontAwesome, uploaded the files to the server and done. Now I'm using my own small kit with less icons and less CSS