User meta again...

[AllFiRE0]

cmi usermeta 
  [playerName] 
    [add/remove/clear/list/increment]
      (key)
        (value)
          (-s)

Why not here:
[-allPlayersOffline || -allPlayersOnline]
  clear
    (key)
      (value)
        (-s)

change # Existing meta if the player has one 
  (key) 
    (value)
      (-s)

And why cant the meta be set for an offline player? Also, its impossible to change the game mode for a player from creative to survival when the player is offline

[Zrips]

UserMeta command isn't limited to online players, as long as there is a user by that name it should work just fine. Double check this with users which names are more simplistic, just incase players name isn't being entered correctly, as some players could be recognized correctly if provided name partially matches the one who is currently online, while in case player is not online then exact (except capitalization) name will be looked up, which might produce seemingly different results

[AllFiRE0]

UserMeta command isn't limited to online players, as long as there is a user by that name it should work just fine. Double check this with users which names are more simplistic, just incase players name isn't being entered correctly, as some players could be recognized correctly if provided name partially matches the one who is currently online, while in case player is not online then exact (except capitalization) name will be looked up, which might produce seemingly different results

Thanks for your answer!
What about the other cmds?
For example /gm 1 player
If the player is offline, the command from the console displays "player survival mode is set"
That is, there is no error, everything works as it should, but the command does not change the game mode, it simply shows that the mode has been replaced but it remains the same

[AllFiRE0]

The player has a survival game mode:
Cmd /gm 1 player — Displays game mode change on survival