Hi Emrik,
If you want them to react to faders or blackout, you will need to use intensity channels. This means you can patch 16 of the "Generic - Dimmer 1x" for the 16 relais.
Technically you could also use the colour channels... I would patch 4 of the "Generic - RGBW" then.
If you don't care about the fader or blackout, you can simply create a personality with all the traits in the programmer. But unless you are running out of available slots for fixtures, I do not recommend this.
Regarding your other questions, I don't really understand. Can you explain a bit more?
Greetings,
Bootsy