How to set Glyphicons icons for menu in joomla 3 in standard protostar template?

Question

Joomla

I actually create a menu with a class menu nav-list
How to insert bootstrap icons before links in the menu?
I understand that this cannot be done by standard means, are there any modules? I'm looking for so much I can't find.
Although I found something like www.bootstrapmenumod.net/documentation/glyphicons , but there is a non-working download link and Google does not help to find this module.
Does anyone have this module? Or mb someone will tell you something?
PS The standard method of selecting an image for a link is not suitable, you need exactly the icons from the bootstrap sprite

Answer 1

Register the menu manually, without the possibility of editing.