Work Order field define and display in Operation TAB

I have a question about the user field define in work order's operation:

I define the user field in the standard IMG for operation's Enhancemen use. but the field can only display in the operation's details' Enhancemen Screen.

What I want is the User field can display in the Operation list screen.

BTW:what es the Equipment numnber in Operation TAB 's meaning

thanks a lot