The Timesheet Populate button is missing

Document ID : KB000130136
Last Modified Date : 27/03/2019
Show Technical Document Details
The Populate button is missing for multiple users,  including a user who has admin access.  
Go to an open Timesheet
Click 'Configure' link
Copy time entries from previous timesheet is unchecked 
Check 'Copy time entries from previous timesheet' 

Additional Information:
Below are the steps to make this change globally

1.  Go to Administration>>Project Management>>Timesheet Options
2.  Check 'Copy time entries from previous timesheet' 
3.  Click Save
4.  Click 'Apply to All Resources'

This will allow all users to see the populate button.