hi guys a big question why i cant find a owner manual of the d live c 2500 or videos of deep features. in yotube is only short videos about easy settings but nothing deep like multiband compression or groups? thanks
because you are not searching in the right place? 
Software is the same for all systems, so what comes close to a manual is this
https://www.allen-heath.com/media/dLive-Firmware-Reference-Guide-V1.7.pdf
and yes there could be more documentation about the DEEP processing
Director is a good training ground for the system as well…
Software Page