[e.k.]

Mike,

As you advised:
First, try pairing the devices in the bluetooth settings --> paired
If you can get the devices successfully paired, then go to the "Connect Tablets" dialog, tap "New Leader" on the S7FE, then tap OK. --> set
It will ask you to accept making the device discoverable. Accept that, --> done
and then on the second tablet, bring up the "Connect Tablets" dialog. --> done
It should scan for any bluetooth devices and show the first tablet. --> follower shows leader
Tap it, then tap "Connect" --> done (connect with the last settings)

Let me know if these steps does not work ---> does not work

You may need to completely unpair the devices, 
then repeat these steps without them paired 
(in which case you'll get a request to pair them in MobileSheets) --> does not work