Interface Overview - Mastering phpMyAdmin 3.1 for Effective MySQL Management - page 50

Clicking on a name opens the right panel in the Database view, and clicking on a
table name opens the right panel in the Table view to browse this table. (see the
Right Panel section for details.)
Tree display of database names
A user might be allowed to work on a single database—for example marc .
Some system administrators offer a more flexible scheme by allowing user marc
to create many databases, provided all have their names starting with marc , such
as marc_airline and marc_car . In this situation, the left panel can be set to display
a tree of these database names, like this:
This feature is currently offered only in light mode, and is controlled by
these parameters:
$cfg['LeftFrameDBTree'] = TRUE;
$cfg['LeftFrameDBSeparator'] = '_';
The default value of TRUE in $cfg['LeftFrameDBTree'] ensures that this feature is
activated. A popular value for the separator is '_' .
Full mode
The previous examples were shown in Light mode, but setting the
$cfg['LeftFrameLight'] parameter to FALSE produces a complete layout of our
databases and tables using collapsible menus (if supported by the browser):