No channels assigned at all - big problem with HM-MOD-Re-8 and HomeAssitant

[HollyGhos]

I have transfered my Homematic BidCoS from FHEM to HomeGear.
I use HomeGear with a CUL and have transferred the hmid from FHEM to HomeGear.
The devices show up in HomeGear after I manually added them via peer (peer add ....).
I use homegear as a bridge for HomeAssistant. So far, so good.

I noticed that homegear does not assign a single channel to any of the connected devices.
This is not bad in most cases, except for a HM-MOD-Re-8.
This is shown as a 1 channel switch and so I could only switch port 1, as the others are not visible in either HomeAssistant or HomeGear.
Can anyone give me a hint how to assign the channels in HomeGear or how to access ports 2-8 of my HM-MOD-Re-8 in HomeAssistant?
Thx
Holly