I did not go so far as to delete and re-add my I3 dimmers via the eisy admin console, but sadly there doesn't seem to be any update with respect to treating these as dimmers versus binary switches in the latest software update (5.6.4). If someone sees a different behavior, please post an update. 

Same experience with the paddle dimmers.  No change with 5.6.4.  I did delete the one in my test setup and add it back after the update to 5.6.4.  I have a i3 keypad on the way to test.

Received my i3 4 button keypad today and installed it in my test setup.  It adds to 5.6.4 correctly as an i3 keypad.  Everything works except you can't set the ramp rate of button 1 from the AC.  It stays at 9 minutes.  A double press on the key has the same effect as a fast on from the AC.  Very nice look and feel.  Able to create a scene with the i3 rotary dimmer that works as expected from one of the buttons with dimming control.