When this option will be implemented?
http://forum.mikrotik.com/t/radius-server-not-working-in-2-8-11/127/1
FINALLY!
they did it without notifying me 
5 days ago:
https://www.google.pl/search?q=routeros+protected+routerboard&source=lnt&tbs=qdr:w
https://wiki.mikrotik.com/wiki/Manual:RouterBOARD_settings#Protected_bootloader
reformat-hold-button-max (5s .. 600s; Default: 10m) Increase the security even further by setting the max hold time, this means that you must release the reset button within a specified time interval. If you set t he “reformat-hold-button” to 60s and “reformat-hold-button-max” to 65s, it will mean that you must hold the button 60 to 65 seconds, not less and not more, making guesses impossible. Introduced in RouterBOOT 3.38.3
So this sentences should be removed now?
Even if reformat-hold-button time is forgotten, holding the reset button for more than 300s will allow you to perform reformat. When you use the button for a complete reset, following actions are taken:"
"
https://wiki.mikrotik.com/wiki/Manual:RouterBOARD_settings#Protected_bootloader
Fixed the manual. You still need to wait a little bit for the release of 3.38.3, plus you will need to also upgrade the backup loader (a dangerous thing in itself), which we will release later this week or the next.
ok i will wait patiently for this amazing feature thanks.