ex8000 extending both 2.4 and 5 ghz from r7000

Thanks for the reply.  I don't have Smart Connect enabled.  I do have the One Wifi Name feature enabled, with the understanding (perhaps incorrectly) that this setting allows me to have the same SSIDs (and passwords) of my R7000 used by the EX8000 (excluding my guest networks, as I've discovered).  This appeared attactive, because:

1. I would not have to make changes to the various client devices in the house, regarding the networks to which they're connecting.
2. I could still keep the slower devices on the slower network, thereby not restricting the performance of the faster band.
3. As portable devices move throughout the house, they could just connect with the same SSID, without having to think about "am I supposed to reconnect to a different network, based on where in the house I am?"

I thought this extender was a way to make a whole home mesh network out of my existing network.  If I'm expecting too much from this setup it would be good to know.  If I should be able to see both network SSIDs extended, I just need to know how.  My scanner is not a scanner at all, in this case.  It's a Windows 10 PC, or a MACbook Air, or an iPad, or an Android phone, etc. just looking for the available network(s) to connect.

Thank you again for your comments, but I'm hoping to get a better understanding of  what's possible.