Hi,
after a long time, I thought I could try to investigate the code some further,
and maybe I found some hint.
The page where I expected the options to show was (probably) the one generated by this function:

void show_admin_page(LOGBOOK * lbs, char *top_group)

Inside, it, the buttons are generated by following code snippets:

(elogd.c:10443)
if (is_admin_user_global(getparam("unm"))) {
   sprintf(str, loc("Change %s"), "[global]");
   rsprintf("<input type=submit name=cmd value=\"%s\">\n", str);
}
(elogd.c:10461)
  if (is_admin_user("global", getparam("unm"))) {
     rsprintf("<input type=submit name=cmd value=\"%s\">\n", loc("Delete this logbook"));
     rsprintf("<input type=submit name=cmd value=\"%s\">\n", loc("Rename this logbook"));
     rsprintf("<input type=submit name=cmd value=\"%s\">\n", loc("Create new logbook"));
}

The functions called to validate the user are following:

(elogd.c:21298)
BOOL is_admin_user(char *logbook, char *user):
//...
   if (user == NULL)
      return FALSE;

(elogd.c:21324)

BOOL is_admin_user_global(char *user)
{
//...
   if (user == NULL)
      return FALSE;

Since I assume that I'm probably in the "userless" case (no users are defined in the configuration,
and no usernames are set when launching elog either), I would understand that this causes the options for
global config editing etc etc not to be shown on the admin page.

In my opinion (and given that my interpretation of the code flow isn't wrong), the "null"
user should be indeed considered admin, at least as long as no user management is defined whatsoever.
(If I got it right, if user==NULL, but a password file exists, user management is applied,
thus we're in the case of anonymous user which is correctly not admin).

Again, I might be wrong, but I would be curious to hear an opinion from you about this issue.
Thanks again for your attention.
GiorgioCC

Just answer it myself : I thought of the checkboxes in front of the attributes as boolean. However, it has to to with the browse feature filtered browsing =1= In this way you can, when checking one of the checkboxes, browse to the same item clicking the next and previous button. Sorry , my question was about RTFM ( Read The Fucking Manual ) So this question is solved.

However , it would be nice to have a checkbox in front of one attribute. Suppose you have a lot a entries in a record ,that are readonly( predefined). The user of the form must only confirm that a job is done by checking the checkbox without going to the edit mode. So, the checkbox is writable in readonly mode. I can inmagine something like : attribute record check = attribute in the configuration file. In this way the user of the form says : job done. There can be only one checkbox for the record.

[ job done]  [ customer ] [ activity ] [ What should be done ]
[X]           BLA          Check job1   Backup mail check
[]            BLA1         Check job2   check error report
[X]           Bla2         Check job3   check MQ jobs

Thanks for your reading this

void show_bottom_text(LOGBOOK * lbs)
{
   char str[NAME_LENGTH], slist[20][NAME_LENGTH], svalue[20][NAME_LENGTH];
   int i, size;

   if (getcfg(lbs->name, "bottom text", str, sizeof(str))) {
      FILE *f;
      char file_name[256], *buf;

      if (str[0]) {
         /* check if file starts with an absolute directory */
         if (str[0] == DIR_SEPARATOR || str[1] == ':')
            strcpy(file_name, str);
         else {
            strlcpy(file_name, logbook_dir, sizeof(file_name));
            strlcat(file_name, str, sizeof(file_name));
         }