The ability to assign period type and calendar should include a date parameter with start date/end date, presently when updating a record you are updating master information.... These date parameters should be used to update the "Period Status" of a resource.

The ability to edit Period-Type should also be extend to the Period Status table, so you can update the period type for any given period for an individual resource.

With the addition of the date parameter functionality such as the missing timesheet report can be expanded to include the date parameters in defining missing timesheets - This will certainly benefit resources that could move between non-chargeable roles and chargeable positions where requirements change for timesheet submission..