Adding a new Timesheet Record means adding another entry for a certain day - in visual terms it means adding another 'tile' to the Timesheet.
There are two ways you can add these;
Click on '+ New Record' in the top right hand corner
Click on the '+' icon that appears when you hover over a certain day
Once you have clicked on either of these buttons a window will pop up on the right hand side - similar to the one that appears when you edit an entry. Here you want to enter all the details of this entry; the employee that worked the hours, the date they worked, whether it's a shift or a leave entry, the location they worked in and finally the actual hours they worked.
If this entry conflicts with one that already exists an alert will appear informing you of the clash.
Once you have entered all the information and want to add it to the Timesheet, click 'Save' or 'Approve'.
If you have multiple entries to add for this person, click on 'New Record'. This will give you the option to enter a new record before approving and adding to the Timesheet.