Thanks for the answers!
Yes, I understand what the ST4 cable is, what was (and still is) not clear to me how to configure whether to use the ST4 cable or connect directly to the mount using USB.
Yesterday I got guiding to work by specifying the guiding camera as the Guider in the optical train for the guiding scope/camera, so probably using the ST4 cable.
Specifying EQMod mount as the Guider didn't work.

The optical train configuration needs more documentation, please.

++Håkan W++

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