Filter Timeline Owner QuickFilter

Hello,

As far as I understood you need to filter options in the "Owner" filter dropdown list. There is only one option to do that - override the crt.LoadDataRequest as (and also include "@creatio-devkit/common" to the schema dependencies):

{
                request: "crt.LoadDataRequest",
                handler: async (request, next) => {
                    if (request.dataSourceName?.includes("ByOwnerQuickFilterInTimeline_ComboBox_List_DS")) {
                        const filterGroup = new sdk.FilterGroup();
                        await filterGroup.addSchemaColumnFilterWithParameter(
                            sdk.ComparisonType.Equal, "Name", "Supervisor"); //add other filters here
                            const filterParameter = {
                                type: "filter",
                                value: {
                                    filterType: 6,
                                    logicalOperation: 0,
                                    isEnabled: true,
                                    trimDateTimeParameterToDate: false,
                                    items: filterGroup.items
                                }
                            };
                            request.parameters = request.parameters
                                ? [...request.parameters, filterParameter]
                                : [filterParameter];
                    }
                    return await next?.handle(request);
                }
            }

You also need to confirm the data source name. The easiest way to do that is to add console.log("LoadDataRequest:", request.dataSourceName); to the crt.LoadDataRequest override and see which datasource is logged when you first click this "Owner" filter.