layers A and B on channels 1 and 4

Hello, I have the x1850, 1 sc 6000 and 1 sl6000. Is it possible to put the first layer on channel 1 and the second layer on channel 4 using the link port to be able to use Engine connect?

I dont think so.

As described on page 5 of the X1850 manual the deck configuration options are limited when using link. So you have to decide if the 1-4 config or link is more important to you