Seemed like a simple enough thing to do. I wanted to change the display
name of an existing user, but can't find where to do that. I found
where to modify user information, but the display name was not
modifiable. Since it was a test site, I just deleted the user. The user
was also a member of a subsite, so I deleted him from there also. But
when I re-added the user, the display name was from the previous one I
just deleted and it could not be edited. Any help on what appears to be
a simple task that my simple mind can't figure out?