Please make title and description from Form API available in Jump module

Not sure I understand what you're asking for. Can you attach a screen shot?

This feature didn't get into 1.x. We are glad to accept a new patch against 2.x branch.

Add the following to your theme_preprocess_block function in template.php:

    // custom preprocessor for jump (menu) to add menu description to block
    if ($block->module == 'jump') {
      if (substr($block->delta, 0, 4) == 'menu') {
        $menu_name = substr($block->delta, 5);
        $vars['block']->description = db_result(db_query("SELECT `description` FROM `menu_custom` WHERE `menu_name` = '%s'", $menu_name));
      }
    }

and create a copy of block.tpl.php in your theme dir called block-jump.tpl.php with the following added:

    <?php if (!empty($block->description)): ?>
      <div class="description block-description"><?php print $block->description; ?></div>
    <?php endif; ?>