How do I allow countdown timer alarm to go off while phone is in vibrate?

I upgraded from Galaxy Mega to Galaxy S6 Edge +. There is no menu button. In Galaxy Mega, part of the menu contains changing the settings of the countdown timer alarm. One setting I had was that I could **set my phone to vibrate while the countdown timer alarm rings when the countdown finishes.** So texts and notifications from apps make my phone only vibrate, but my countdown timer rings. In Galaxy S6 Edge +, it seems like my phone vibrates iff my countdown timer alarm vibrates. How can I allow the countdown timer to ring while my phone is set to vibrate mode? --- Galaxy mega has option in timer to change volume. The timer indeed goes off even when the phone is in vibrate. This does not seem to be allowed in s6e+ Click on picture for larger version Bounty note: I think there's something in sounds and notifications, but I can't seem to find it.