since list of leds is empty, I presumed, that numbers can't be specified.
This seems to be true
[admin@MikroTik] > system leds disable numbers=2
no such item
[admin@MikroTik] > system leds disable numbers=0
no such item
[admin@MikroTik] > system leds disable numbers=1
no such item
[admin@MikroTik] > system leds disable numbers=
numbers: 0
no such item
[admin@MikroTik] > system leds print
Flags: X - disabled, * - default
# TYPE INTERFACE LEDS
[admin@MikroTik] >
maybe those led's must be added at first somehow (with /system leds add)?
Tried to do that, but disabling it does not turn off any leds, and at the end, added led can't be removed:
[admin@MikroTik] > system leds add leds=user-led type=interface-status interface=ether2-master-local
[admin@MikroTik] > system leds print
Flags: X - disabled, * - default
# TYPE INTERFACE LEDS
0 * interface-status ether2-master-local user-led
[admin@MikroTik] > system leds disable numbers=0
[admin@MikroTik] > system leds print
Flags: X - disabled, * - default
# TYPE INTERFACE LEDS
0 X* interface-status ether2-master-local user-led
[admin@MikroTik] > system leds remove 0
can not remove preset leds
[admin@MikroTik] >