It would be great to not only report lightning distance but also a direction heading. That way users could know which direction the lightning is coming from and also - if relevant, be able to decipher if there are multiple storm cells in the vacinity.
Sorry, but the device doesn’t measure the direction.
I was told by support that a direction reading is beyond the device capabilities however direction heading is something that might be achievable using other means. They suggested I post the idea here to see if it gains some traction.
You could always look at Blitzortung.org - Live Lightning Map. Without that kind of data it is pretty hard to determine if there are multiple storms in your vicinity.