Concatenate different fields into Body on ticket creation

[GardenDwarf]

Hello,

I want to segregate the "Body" part of the ticket template (e.g. phone ticket) into different parts (all dedicated to specific information).
When the user clicks on "Create", the different fields will have to be concatenated and copied into the "Body" text box.

I am searching into the Perl modules files for a function which takes the data from the form (and presumably place it into a structure for further processing), but I'm not sure it's the way it works.
Anyone help? Thanks

[GardenDwarf]

Ok, I was searching for some times, and when I post here I find the answer.
What I was looking for is in AgentTicketPhone.pm (for phone ticket)...