1. Add 

• Pre-condition: Subgroups are added but not released yet. 

• After clicking Add button to open “Add special service” pop up

• Adding completely and note that Adding creates a single new Special Service record for the current Subgroup, with From = the Subgroup’s Arrival Date and To = the Subgroup’s Departure Date, auto-populated without manual date entry. This action is independent of the Group-level template and does not trigger any fan-out to other Subgroups.

• Add more Special service → Select Subgroup (are not released) to apply.

2. Edit

• Available only when the Subgroup is unreleased. 
• Editable fields: From, To, Quantity, Unit Price, Employee, Transaction Page, Note.

3. Delete: 

• Available only when the Subgroup is unreleased, and removes only the selected record.

* Note: Once the Subgroup is released, all its Special Service records become read-only, and Add, Edit, and Delete actions are no longer available. Even add more new subgroup (added Special services before will be applied for this new subgroup)

• User can Add, Edit, and Delete in child booking