There is a need to add an additional link on the nav drawer, but I am unable to figure out how to do it.
Bumping this. Can someone pls help?
Could this be what you're looking for?
In the plugins Readme it makes reference to:
Insert root nodes to Boost's nav drawer
Enabling any of these settings will insert additional nodes to Boost's nav drawer.
I haven't tested the plugin myself so I can't say for sure if it's what you want.
with Boost navigation fumbling which was already mentioned by Ross, you are able to add custom links to Boost's navdrawer. Boost navigation fumbling and Boost Campus are both built by Ulm university and are compatible to each other.