Based on field value change the new fields should be added to the page

Hi Team,

We have a requirement in the Helpdesk module where, whenever the Category field value is changed, a set of Descriptive Flexfields (DFFs) should be dynamically added to the page based on the new selection.

Navigation:
Helpdesk → My Help → Create Request → New Help Desk Request page → Category field

Example Scenario:

If the Category field value is set to "Grievances", the following fields should be dynamically added to the page:

• Date of Incident
• Time of Incident
• Location of Incident
• Identify Name and Job Title of Subject of Complaint

Could you please advise on how this can be achieved? how can we implement this functionality using Visual Builder Studio (VBS)?