I know there's a search bar at the top would be good to implement a floating searchbar that when a specific shortcut (user defined) in the node editor you get a search function to search for nodes and press enter to drop it down, just like how shift c works in native cinema4d.
It's just a really fast workflow in substance designer and would love to see it implemented in octane node graph rather than having to dig through the node menus.
I'm no coder but I can't imagine this would be a huge hassle to implement?