Hi JGluch,
Here are some examples from my side:
A simple light:
Switch KNX_KE_Bureau_0_0_8 "Licht Bureau" <light> (gKE_Bureau, gKE_Lights) { knx="0/0/8+0/1/8" }
A dimmer:
Dimmer KNX_GV_Living_Centraal_Dim_0_2_3 "Dimmer Living [%s]" <dimmablelight> (gGV_Living) { knx="0/0/17+0/1/17, 0/2/3, 0/3/17+0/4/17" }
A rollershutter:
Rollershutter KNX_EV_MasterBedroom_Screen_9_1_0 "Screen Slaapkamer K&D [%d %%]" <rollershutter> (gEV_MasterBedroom, gScreens) { knx="9/2/0, 9/2/1, 9/2/3+9/2/2", autoupdate="false" }
A must-read: KNX Binding information
What I would try in your case:
Dimmer CeilingLight "Lamp [%s]" { knx="1/1/0+1/1/2, 0/2/3, 1/1/1+1/2/2" }
I’m not sure, since I don’t know your KNX switch and how you set up your GA’s. What you could also try is:
Dimmer CeilingLight "Lamp [%s]" { knx="1/1/0+1/1/2, 1/2/2, 1/1/1+0/2/3" }
If that doesn’t work, provide some more input. See this example. It helps me to better understand.