Access files on Rasperry/Kodi from Win10 PC via network

Hello,

I am using Kodi (OSMC) on Raspberry 2b with attached external USB HDD. Files on HDD are mapped to Kodi libraries
I would like to access and manage (copy, move, delete) the files located at the HDD from my PC. Both Kodi and PC are connected to the same wifi.
So far I only managed to access Kodi as UPnP location which opens web page with strange interface where I cannot move the files, only play them (from Kodi).

Usecase: When I download something at my PC I don’t want to need to disconnect the HDD from Kodi and connect it to PC.

Thank you for any sugestions.
Jakub