Fibaro FGS-222 Dual Relay (ZWN-RSM2 device type) - WORKS!

Im afraid Im not sure with this device type, but if you use the one I have created (modified from [deleted]'s and Eric’s) then you can first of all create a separate button that should be more reliable. Plus if you click on the settings icon at the top right, then you can set the auto off time for the relay (parameter 3 and 4 from memory). If you set this to 2s or something like that then when you press on, it will auto turn off after 2seconds.