Sinc at start up

I currently have some lights set up on WLED. I have a 8 mini trees of which 4 run off one esp8266 and the other 4 run of a separate esp8266.

When I switch the lights on, I have the first 4 trees set to boot up into a set sequence, at this point, the second 4 trees are lit solid orange. Then I have to press the sinc button to get the second 4 trees to run the same sequence.

Is there any way that I can get the second 4 trees to sinc from switch on, so that all 8 trees run the same sequence from switch on ?

Thank you.