How to group (mysensor) RGB(W) switches

[LastSamurai]

Hi,

I have several RGBW color strips controlled via mysensors included in my domoticz system. Now while I still want to be able to control them 1 by 1 I would also like to have a group to at least on/off them all at once (changing color for all of them would be great too).
How do you do that?

I created a group and added both devices but when I switch that group on and off nothing happens. I am using the newest beta channel version of domoticz.

[LastSamurai]

Oh btw I just noticed that switching them off via the group works. When I try to switch them on domoticz shows the single lights as "on" but nothing happens. Possible bug?

[LastSamurai]

Doesn't anyone have an idea how to do this?