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15th chunk of `top.man`
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 occurred for a task.  A page fault occurs when a process attempts to read from or write to a virtual page that is not currently present in its address space.  A major page
           fault is when auxiliary storage access is involved in making that page available.

       nMin  --  Minor Page Fault count
           The number of minor page faults that have occurred for a task.  A page fault occurs when a process attempts to read from or write to a virtual page that is not currently present in its address space.  A minor page
           fault does not involve auxiliary storage access in making that page available.

       nTH  --  Number of Threads
           The number of threads associated with a process.

       nsCGROUP  --  CGROUP namespace
           The Inode of the namespace used to hide the identity of the control group of which process is a member.

       nsIPC  --  IPC namespace
           The Inode of the namespace used to isolate interprocess communication (IPC) resources such as System V IPC objects and POSIX message queues.

       nsMNT  --  MNT namespace
           The Inode of the namespace used to isolate filesystem mount points thus offering different views of the filesystem hierarchy.

       nsNET  --  NET namespace
           The Inode of the namespace used to isolate resources such as network devices, IP addresses, IP routing, port numbers, etc.

       nsPID  --  PID namespace
           The Inode of the namespace used to isolate process ID numbers meaning they need not remain unique.  Thus, each such namespace could have its own ‘init/systemd’ (PID #1) to manage various initialization  tasks  and
           reap orphaned child processes.

       nsTIME  --  TIME namespace
           The Inode of the namespace which allows processes to see different system times in a way similar to the UTS namespace.

       nsUSER  --  USER namespace
           The  Inode of the namespace used to isolate the user and group ID numbers.  Thus, a process could have a normal unprivileged user ID outside a user namespace while having a user ID of 0, with full root privileges,
           inside that namespace.

       nsUTS  --  UTS namespace
           The Inode of the namespace used to isolate hostname and NIS domain name.  UTS simply means "UNIX Time‐sharing System".

       vMj  --  Major Page Fault Count Delta
           The number of major page faults that have occurred since the last update (see nMaj).

       vMn  --  Minor Page Fault Count Delta
           The number of minor page faults that have occurred since the last update (see nMin).

   3b. MANAGING Fields
       After pressing the interactive command ‘f’ (Fields Management) you will be presented with a screen showing: 1) the ‘current’ window name; 2) the designated sort field; 3) all fields in their current order  along  with
       descriptions.  Entries marked with an asterisk are the currently displayed fields, screen width permitting.

           •  As the on screen instructions indicate, you navigate among the fields with the Up and Down arrow keys.  The PgUp, PgDn, Home and End keys can also be used to quickly reach the first or last available field.

           •  The Right arrow key selects a field for repositioning and the Left arrow key or the <Enter> key commits that field’s placement.

           •  The ‘d’ key or the <Space> bar toggles a field’s display status, and thus the presence or absence of the asterisk.

           •  The ‘s’ key designates a field as the sort field.  See topic 4c. TASK AREA Commands, SORTING for additional information regarding your selection of a sort field.

           •  The ‘a’ and ‘w’ keys can be used to cycle through all available windows and the ‘q’ or <Esc> keys exit Fields Management.

       The  Fields Management screen can also be used to change the ‘current’ window/field group in either full-screen mode or alternate-display mode.  Whatever was targeted when ‘q’ or <Esc> was pressed will be made current
  

Title: Top Command: Field Descriptions and Managing Fields
Summary
This section describes more fields in the `top` command output, including nMaj (Major Page Fault Count), nMin (Minor Page Fault count), nTH (Number of Threads), nsCGROUP (CGROUP namespace), nsIPC (IPC namespace), nsMNT (MNT namespace), nsNET (NET namespace), nsPID (PID namespace), nsTIME (TIME namespace), nsUSER (USER namespace), nsUTS (UTS namespace), vMj (Major Page Fault Count Delta), and vMn (Minor Page Fault Count Delta). It also details how to manage fields in the interactive mode by using the 'f' command, allowing users to reorder, toggle display status, and designate a sort field.