I made a start at this, looking at the way to associate two Z-Wave nodes which started to make sense, unfortunately the two current Z-Wave relays I have don’t support association, so unless I can make a virtual one (does not look possible) then I will have to wait and get a new compatible Z-Wave device.
The target devices don’t have to support association. Only the trigger device (your TZ36D) does.
The trigger device is going to send a “basic“ (that is a Z wave term in this context) to the target devices. They will receive it just like they would receive a command from the hub. So that part is OK.
In order to set the associations in the trigger device, you can use the “Z wave tweaker.“
This is a custom DTH created by a community member that will work for any mains powered Z wave device. (It does not work for battery powered devices.)
You will temporarily change the DTH for your paddle switch To the tweaker, then set all of the associations, save those to the paddle switch, and then change back to your regular DTH for the paddle switch. Your associations were saved in the firmware of the paddle switch, so they will still be set.
You can get the code for the Z wave tweaker and ask any further questions about it in the following thread.
So I had a go at this this afternoon but without success.
Changed the handler on the TBK to Wave-Tweaker and can check settings and set up the switch.
Identified in the switch I want to control as having an ID of DEF7
Identified the group I want to use (has the correct function) from the manual as group 4
So using the Wave-tweaker set the Associated Group ID: 4
and the Associated Group Members: DEF4
and Command Class: Auto-Detect
Saved that and SYNED turned green fine, however the second switch did not start controller the Z-Wave device.
Instead the Left TBK switch in the Smartthings GUI became detached from the physical switch and right switch started controlling that, so a step back I think. I am more confused than ever on what setting I should put in with the Wave-tweaker.