By default when you go to Resource Workloads Portlet, select 'Configure' option and then 'Time-scaled Value' appears these values as default
Rolling Date = Start of Current Week
Time Scale = Week
Number of Time Periods = 10
If you need to change these values for your own personal configuration, follow this instructions to make a a configuration change in the application.
Note: This change only will change the values of the logged user, the others users will continue seeing the default values, namely, is a change by user, not as global setting. To change the configuration for all users, go to the Resource Workloads Portlet definition in Studio Administration.
For more details on the date range scope of Resource Allocation Time Slices in the application TSV views, refer to TEC439086 : Error Received: [The time periods requested do not exist. Review the column's Time Scale settings.]