Employee Portal Setup, Employee Self Service Tab

Update Personal Particulars
When the check-box option Enable update "Qualifications and Skills" and "Employment History" request (available on Web Client only) is checked, the Qualifications and Skills and Employment History sections are available in Update Personal Particulars.
When the check-boxes Enable Update... are checked, the User Defined Fields (except long text) in Employee Master are allow to let the employee portal user to request update in Update Personal Particulars function and approved by Update Personal Particulars Approval function.

Company Calendar
When Enable Drill Down on Company Calendar is enabled, hyperlinks are available on the Calendar and enable to drill down to view the original Leave Applications including remarks and attachments for all Leave Type. Be caution about the privacy.  When this option is turned off, the drill down can be controlled in individual Leave Type.

Attendance Record
When Show "Correct Time" Buttons in Attendance Record is turned on, the Attendance Record in Employee Portal will show the Correct Time button to apply an In/Out Time Correction Request application if the days of the employee is either Late-In, Early Out or Absent except if the check-box Show on Every Day is checked, in that case, the Correct Time button will show on Every Day. See What is 'Show "Correct Time" Buttons in Attendance Record' in Employee Portal Setup for details.