I installed it to use as a NAS on my
Raspberry Pi 3 Model B Rev 1.2
OpenWrt 19.07.4 r11208-ce6496d796 / LuCI openwrt-19.07 branch git-20.247.75781-0d0ab01
I don't have a luci mount points menu but there should be one under system?
I manually mounted my ntfs drive r/w using ntfs-3g.
It is for my dad and he needs Windows and a nice GUI.