I'm trying to set up Cake SQM for the mobile (LTE) interface on my RUTX09. The Wiki manual page implies that this should be possible. However, the GUI doesn't list any other interfaces besides LAN and WAN:
The screenshot is from firmware RUTX_R_00.07.00 to which I upgraded and applied a factory reset to see if that could help. The behaviour was similar on RUTX_R_00.02.06.1. Also, I tried on different OSes (Mac, Windows) and browsers (Safari, Firefox, Edge) to rule a browser issue out. Am I reading the manual wrong or is there some issue with the firmware or the device?