For my "single button" switch (FIbaro FGS-211) the expert ui does not show instance [0].
But it shows instance [1] and instance [2] . Unfortunately instance [2] is useless in this device (from my point of view).
As a result of this, expert ui's "control->switch" will/can not show the state change, triggered by a user, pressing the hardware button because this change will be reported with instance [0].
blueui does not suffer from this because it shows all 3 instances. And it properly shows instance [1] instance [2] as "on" as well, if device gets instance [0] level on.
V2.0.0 Instance 0 not shown in Expert ui
V2.0.0 Instance 0 not shown in Expert ui
Z-Way 2.0.0-final on Raspberry Pi