Ardour not a Writable Client listed on ALSA tab in Jack

Ardour is not showing up as a Writable Client on the ALSA tab in Jack when I click Connections.

I found this video on YouTube:

In this video he is doing just what I want to do with my Zoom R8. I do have Ardour working with Jack audio in that I have been able to mix files already on my computer and have audio out.

But if what is shown in the video is still accurate, is there something I am missing to get ardour to show up as a Writable Client in the ALSA tab?

I do see ardour in the MIDI tab.