Hi @Jessa
I guess you mean parameter 122 (0x7A) with value = 2
0x7A (122) Set the control destination for external switch
1 = control the output loads of itself.
2 = control the other nodes.
3 = control the output loads of itself and other nodes
If when you do this it stops sending reports to the hub then, as you say, it should work by associating the groups 3 and 4 to the Hub.
When you associated groups 3 and 4 to the hub, did you also set the parameters 120 (0x78) and 121 (0x79) to a value other than 0? to value 1 for example.
Group 3 [1,5] Single
Cast
Send Basic Set (enabled by Configuration parameter 0x51)
to the associated nodes in Group 3 when the external switch
S1 is operated.
Note: The Switch Mode of external switch S1 should be identified
successfully, which means that the value of Configuration
parameter 0x78 should be non-zero, then the Basic Set can be sent
to the associated nodes in Group 3 via triggering the S1 switch.
Group 4 [1,5] Single
Cast
Send Basic Set (enabled by Configuration parameter 0x52)
to the associated nodes in Group 4 when the external switch
S2 is operated.
Note: The Switch Mode of external switch S2 should be identified
successfully, which means that the value of Configuration
parameter 0x79 should be non-zero, then the Basic Set can be sent
to the associated nodes in Group 3 via triggering the S2 switch.
What you want to do is the same as if you physically disconnect output 1 and 2 of the switch and connect them directly to line L.
This is much easier, but I don’t know if it is legal in australia to install a light bulb without a switch to control it.
My Z-wave Switch and Child Mc driver allows you to optionally and temporarily create a virtual device to easily configure parameters and association groups and test without having to change drivers.