Unlock with finger print on Marshmallow

[pbls]

Guys one noob question how can i unlock the device only with finger print? On oxygen2.2.1 I have that option available and on CM based ROMs just can't find it,tanks.

 

[pitrus-]

What do you mean with only FP? It's a safety feature to still be able to use on screen pattern since the FP sensor has a tendency to stop working from time to time under CM13 telling you the hardware is missing. Only being able to login using FP would lock you out of your phone in those moments. Also first time unlock after reboot requires patter unlock to verify it's you and not just a 3d rubber print out of your finger print. ?

 

[pbls]

The problemas was an APP called screen lock that I always use,after uninstalled it everything works fine now,thanks