my $next = $ibx->over->next_by_mid($ctx->{mid}, \$id, \$prev);
$ctx->{more} = $next ? [ $id, $prev, $next ] : undef;
return '' unless $smsg;
my $next = $ibx->over->next_by_mid($ctx->{mid}, \$id, \$prev);
$ctx->{more} = $next ? [ $id, $prev, $next ] : undef;
return '' unless $smsg;