There’s no shame in not knowing. I for that using WinSCP.
After you installed WinSCP, run it, connect Dwarf to USB(must be powered on 
) and hit Ctrl+N after that you will see this window
fill it same as you see on picture and password is “mod” and hit login.
Path where you can find plugins is /root/.lv2/
if you dont see .lv2 folder in root folder hit Ctrl+Alt+H
hope thats all
if you have any question please ask