Load and edit a form

Hi,

I have a form so that when the user initiates a case he can carry all their information from the organization in the Bonita Portal. This information should automatically be displayed in all required fields on the form, but if the user wants to change something, must be enabled to edit the fields. Does anyone know how I can load this information and that in turn can be editable? I'd appreciate your help.

Regards,

Victor