Currently, the developer can provide a start and end Day of a Work Week and start and end time (HH:mm) of a Work Day.

Please provide options to create a custom view by setting a start, end view Date and range(something like startViewDate and endViewDate). This would be similar the the Kendo UI for jQuery API:

https://demos.telerik.com/kendo-ui/gantt/selected-date-and-range

https://docs.telerik.com/kendo-ui/api/javascript/ui/gantt/configuration/views.range

https://docs.telerik.com/kendo-ui/api/javascript/ui/gantt/configuration/range

Thanks.