mb850063@... wrote:

> how do I add users, for example yyyy and zzzz ?

why don't you use the gui as mentioned by Michele and Slavek?

also if the user is in the range it should show up automatically, if it is
out of the range - why would you want to show this user?

here

#UserCompletion=true
# Enable user list (names along with images) in the greeter.
# Default is true
#UserList=false
# User selection for UserCompletion and UserList:
# "NotHidden" - all users except those listed in HiddenUsers
# "Selected" - only the users listed in SelectedUsers
# Default is NotHidden
#ShowUsers=Selected
# For ShowUsers=Selected. @<group> means all users in that group.
# Default is ""
#SelectedUsers=root,johndoe
# For ShowUsers=NotHidden. @<group> means all users in that group.
# Default is ""
#HiddenUsers=root
# Special case of HiddenUsers: users with a non-zero UID less than this
number
# will not be shown as well.
# Default is 0
MinShowUID=1000
# Complement to MinShowUID: users with a UID greater than this number will
# not be shown as well.
# Default is 65535
MaxShowUID=29999
# If false, the users are listed in the order they appear in /etc/passwd.
# If true, they are sorted alphabetically.
# Default is true
#SortUsers=false
# Specify, where the users' pictures should be taken from.
# "AdminOnly" - from <FaceDir>/$USER.face[.icon]
# "PreferAdmin" - prefer <FaceDir>, fallback on $HOME
# "PreferUser" - ... and the other way round
# "UserOnly" - from the user's $HOME/.face[.icon]
# Default is AdminOnly
#FaceSource=PreferUser
# The directory containing the user images if FaceSource is not UserOnly.
# Default is "/opt/trinity/share/apps/tdm/faces"
#FaceDir=/usr/share/faces
# Specify, if/which user should be preselected for log in.
# "None" - do not preselect any user
# "Previous" - the user which successfully logged in last time
# "Default" - the user specified in the DefaultUser option
# Default is None
#PreselectUser=Previous