Turn off LEDs on RB4011iGS+RM

Hello,
I have recently purchased RB4011iGS+RM and would like to turn off the LEDs.
Winbox says it is not an option.
I was hoping for a workaround.
Is there one?
Thanks in advance.

Nope.

Piece of tape will do wonders.

MikroTik RouterOS v7.20.4

[admin@Mikrotik] > /system/leds/settings/set all-leds-off=immediate failure: This feature is not supported on this board!

#feature request