Sitemap Group Chart

Hi!

Could someone help me and give me some information how to set up Group Chart item within OH3 - when possible using Main UI.

Did it former in OH2.5 like
Bildschirmfoto 2021-05-04 um 20.47.04

via OH2.5 sitemap

Switch item=Chart_WarmWasser icon="softener" mappings=[0="Tag", 1="Woche", 2="Monat"]
   Chart item=KM200_HC1_WaterTemp period=D refresh=7200 visibility=[Chart_WarmWasser==0, Chart_WarmWasser=="Uninitialized"]
   Chart item=KM200_HC1_WaterTemp period=W refresh=1800 visibility=[Chart_WarmWasser==1]
   Chart item=KM200_HC1_WaterTemp period=M refresh=3600 visibility=[Chart_WarmWasser==2]
                
Switch item=Chart_HeizungTemp icon="fan" mappings=[0="Tag", 1="Woche", 2="Monat"]
    Chart item=gHeizungTemp period=D refresh=7200 visibility=[Chart_HeizungTemp==0, Chart_HeizungTemp=="Uninitialized"]
    Chart item=gHeizungTemp period=W refresh=1800 visibility=[Chart_HeizungTemp==1]
    Chart item=gHeizungTemp period=M refresh=3600 visibility=[Chart_HeizungTemp==2]

Thank you very much for any idea and information.
Cheers
Andreas