Admin configuration values, show name of constant in the title

Suggestion
I find a pop-up/title on the value more convenient than pasting the description into a search field in the Developers Tool Kit.
In admin/configuration.php I added a title

<td class="dataTableContent"><?php echo htmlspecialchars($cfgValue, ENT_COMPAT, CHARSET, TRUE); ?></td>

to

<td class="dataTableContent" title="<?php echo $configuration->fields['configuration_key']; //mod added key ?>"><?php echo htmlspecialchars($cfgValue, ENT_COMPAT, CHARSET, TRUE); ?></td>

and for overkill, in the info boxes

$heading[] = array('text' => '<b>' . $cInfo->configuration_title . '</b>');

to

$heading[] = array('text' => '<b>' . $cInfo->configuration_title . '</b> ' . $cInfo->configuration_key);//mod added key

Here's a built-in way:

1. Do a quick search on this key: ADMIN_CONFIGURATION_KEY_ON in Dev Toolkit, and set it to 1 (default is 0).

2. Now anytime you're looking in the Configuration menu, the key you're looking at will display in the title of the right-hand sidebar (infoboxes).

Do a quick search on this key: ADMIN_CONFIGURATION_KEY_ON in Dev Toolkit, and set it to 1 (default is 0).

I found the result of the search to be not editable.
I needed to manually enter the gID=6 in the url to get to this option:
https://www.shop.com/ADMIN_FOLDER/configuration.php?gID=6

That's because gID=6 (Modules) is registered to "not display on the menus".