You can always run DSLStats which works very well with the 1312-B10A if you don't wish to re-flash the firmware, although I use a 1312-B10A as modem have never tried the Johnson F/W, have always been happy with a RPi running DSLStats 24/7 and found the 1312-B10A to be the best performer by far on my rather long VDSL-2 line to Huawei cabinet having tried various modems.
I appreciate that running DSLStats 24/7 requires keeping either a PC or a RPi running also, however, a very modest RPi Zero-W will run from the modem USB port and communicate to PC (Win, Mac or Linux) using VNC over Wi-Fi, will even work remotely over WAN if so required.