How to disable ports on Razer Chroma Addressable RGB with Synapse4

previously the detect function showed unused ports on my ARGB controller but now its detecting 80 leds on the ports that are not connected, (1,2,3) connect ports (4,5,6) seem to be detected ok but im unsure if this is a limitation of synapse4 or if something else has changed,  ignoring the issue with detection is anyone aware of a manual way to disable these ports ( tried to set Led count to 0 etc ) but so far nothing works.