What I meant was probably what's called "Traffic Manager - Traffic monitor by device" (both real-time as well as cumulative historic). Like this screenshot shows https://www.asuswrt-merlin.net/sites/default/files/pictures/IPTraffic_Stats.png
but should I use this branch or main Merlin for RT-AC66U?
I'm new to this forum and Merlin in general. I wonder if this LTS branch of the Merlin has Traffic Analyzer. I have RT-AC1750 router (I guess same as RT-AC66U) and stock firmware. However, I need to be able to monitor real-time (and, maybe, historical/aggregated) usage by device, which stock...