Three Grouping Fields in a Category

Hey Community,

in the last Week i got a very good visual, but i think i do something wrong with my Code.

I think it isn´t implement like the Developer of the power bi visual tool want it.

And since last Friday my Visual do not work. So maybe you can help me make a clean solution for my goal.

My Data consists three Grouping Fields: Date, Status and the ID

and two value Data X and Size.

My first solution based on a table: 

    "dataViewMappings": [
           {
            "table":{
                
                "rows": {
                    "select": [
                        {
                            "for": {"in": "ID"}              
                        },
                        {
                            "for": {"in": "Date"}
                        },
                        {
                            "for": {"in": "Status"}
                        },
                        {
                            "for": { "in": "X"}
                        },
                        {
                            "for": { "in": "Size"}
                        }
                    ]
                }
            }
        }
    ],

But in most examples they use categorical data mapping. But with that kind of mapping i can only set two grouping fields. One for the category and one for the grouping. Each other field are not shown.

In the end i need the categorical data mapping for my colorSelector. The colorSelector only work with categorical datasets. So since Friday before Friday my old solution works fine. But i think that is not the way i should do this.