Ticket - by: mtrem

Hello
in ticket module , il need listbox linked on type of project .
ex : Project : Purchase
Ticket : non conformance
domain : choice 1, 2, 3, 4

Project : IT
ticket : Non conformance
domain : choice 12,13,14

can i use an existing list like Critical or other for that ? and how i can link project and domain ?

Regard's