Add Approval in metadata options

How can I give “ticket metadata” the option “Approval” in the current option list:-
“Comment · Reply · Forward · Resolve . * · Extract_Article”.
I am guessing that this is one place the approval is an option.
Ian

How can I give “ticket metadata” the option “Approval” in the current option list:-
“Comment · Reply · Forward · Resolve . * · Extract_Article”.
I am guessing that this is one place the approval is an option.
Ian