DevExpress angular scheduler - same childs are copied in each room

Question

I need grouping into scheduler. The problem is same childs are copied in each room. Is there any possibility of filtering/ hiding to achive our result.

Sample JSON:

rooms = [
  {
      id: 1, 
      text: "Room 1",
      children:[
           {
              id: 1, 
              text: "Doctor 1",
           },
           {
              id: 2, 
              text: "Doctor 2",
           }
      ]
  },{
    id: 2, 
    text: "Room 2",
    children:[
           {
              id: 3, 
              text: "Doctor 3",
           },
           {
              id: 4, 
              text: "Doctor 4",
           }
      ]
}
];