Ähhhh, no.
Press and hold: Press and hold the button and then release it after 0.2 - 3 seconds.
The 0.2 seconds may not make much sense because it comes very close to a short press. But that’s what the manual says, it’s not my fault.
I would try holding the button down for about 2-4 seconds like it’s stated in Homey instruction screenshot and then releasing it. If this doesn’t work, just try just ca. 2 seconds.
Toggle: Toggle means to switch. So you only have to press the button once, like a push button.
That’s just the way it works with Homey.
The reason why Athom does it this way: In the past, Athom Support repeatedly received requests from users that they were not able to pair their Z-Wave devices with Homey. It turned out that many users used another Z-Wave gateway before and had not removed/excluded their Z-Wave devices correctly. This means that the Z-Wave devices were still connected to the old Z-Wave gateway. In this case, Z-Wave devices cannot be connected to a new Z-Wave gateway.
Because Z-Wave devices can be excluded with any Z-Wave gateway, so it doesn’t have to be the original/old Z-Wave gateway, Athom added the exclusion procedure as the first step for the pairing process itself.
However, it doesn’t matter if the Z-Wave device wasn’t connected to another Z-Wave gateway before.