On the Projects+ parameters two new parameters is added to activate this feature.
Go to Project management and accounting > Setups > Projects+ parameters > Timesheets tab
Use favorites – When the parameter is marked, timesheet user can use option ‘My favorites’ on timesheets.This field is same as the standard field ‘Use favorites’ on the project accounting and management parameters. Modifying the field on either places will reflect changes on the subsequent forms
Activate project resource assignment – When a Resource is assigned to a Project, a Favorite is created for that Resource automatically and will be deleted when Resource is Removed or Project is complete.
Activate project tasks assignment – When a Resource is assigned through the WBS tasks or through Resource forecast form, a Favorite gets created automatically and will be deleted when Resource is removed or task is complete.