Find Template Cargo
Depending on your access permissions the table of Template Cargoes might not be visible.
The list of Template Cargoes can be located from the Contract of Affreightment Line drawer.
From the table in Contract of Affreightment Line drawer
Having the drawer for Contracts of Affreightment Line open you can locate the table listing the Template Cargoes. Clicking a line in the table will open a drawer with additional information.