LInk Ringtone and Notification Volumes

[MoClvland]

I'm coming from an HTC One and I noticed that the S6 doesn't seem to have the option to link the ringtone and notification volumes like the HTC did.

So if you use the volume button it only reduces the ringtone volume and not the notification volume so you have to go into the settings to reduce the notification volume.

Is there any way to change both volumes with the volume button?