While the interface traffic and CPU/memory/disk graphs work as expected, I'd like to graph the voltage (DC power supply with lead acid battery backup) as well, to know when there were AC power failures and how good is still the battery.
The old docs for 3.0 - http://www.mikrotik.com/testdocs/ros/3. ... aphing.php - mentions the "/tool graphing health" submenu, for which you have to install the routerboard package (and it is installed), but this submenu doesn't exist ("/system health print" works normally). If it was in 3.x, could it be added back to 4.x as well - or is it already there, but some other package needs to be installed to make it work?