If you want to use all Inovelli switches, you should be able to set up a maximum of a 6-way using associations (as long as you have the ability to change config parameters and set up associations with your hub)
Pros:
- Remote switches do not need to be on the same circuit
- Status LED is synchronized across all switches
- “On” is always on, and “Off” is always off
- Works even if your hub goes down, since the switches talk directly to each other
- Can control the notification LED for each switch independently
Cons:
- notification LEDs are not synchronized across switches
- To control the lights with your hub, you should only control the switch that is connected to Load (the load switch will then forward the command to the remote switches). If you control the remote switches with your hub, it will not forward the command to the Load switch (this is to prevent infinite forwarding loops)