I have a couple questions about the lock screen. I have a note 5 running marshmallow, and when I’m on a lock screen I made I can still access multitasking and open other apps which seems really unsafe.

1) Can I disable hardware buttons on the lockscreen?

2) Is there a way to use fingerprint unlock?

3) If none of those, can I use the note 5s lock? That way I can use fingerprint unlock and what I’m used to.

Thanks for any answers you can give me.