Follow below steps to enable.

Configuration>>HRIS>>Attribute Master>>Relation Master (Admin/ HR Role )

Step 1:

  • Click Add new if needed,fill all details and save

Step 2: 

  • Click action icon to edit relationship
  • By default relation type will be Non Family Member Click to change to family member.
  • Click to save.

Note: Now you can check under family details relationship type will display.