Som confusing, help needed!

First off, yes i should probably not have gone this route, but thats to late now, i love the concept and just the little the app has given me som far, but i am totaly green om this stuff… i have the following equipment
4 x fibaro dimmer 2
1 x homey
2 x namron (sunricher) 4way wall switches
And a heat ut thermostat
Now i have managed to add the thermostat, the dimmer 2’s and the switches to the homey app thru different apps…(fibaro, namron, ROBBS)
But how the bloody do i get the switches to also controll the lights ?
Everything is z-wave…

make flow for that: