redux_subsection_example.php

<?php
Redux::setSection(
        'tuts_plus_tutorial', // This is your opt_name,
        array( // This is your arguments array
               'id'    => 'subsectionsection_example_1', // Unique identifier for your panel. Must be set and must not contain spaces or special characters
               'title' => 'Subsection Parent',
               'icon' => 'el el-magic', // http://elusiveicons.com/icons/
               //'subsection' => true, // Enable this as subsection of a previous section
        )
    );
    Redux::setSection(
        'tuts_plus_tutorial', // This is your opt_name,
        array( // This is your arguments array
               'id'    => 'subsectionsection_example_2', // Unique identifier for your panel. Must be set and must not contain spaces or special characters
               'title' => 'Subsection 1',
               'icon' => 'el el-lines', // http://elusiveicons.com/icons/
               'subsection' => true, // Enable this as subsection of a previous section
        )
    );
    Redux::setSection(
        'tuts_plus_tutorial', // This is your opt_name,
        array( // This is your arguments array
               'id'    => 'subsectionsection_example_3', // Unique identifier for your panel. Must be set and must not contain spaces or special characters
               'title' => 'Subsection 2',
               'icon' => 'el el-question', // http://elusiveicons.com/icons/
               'subsection' => true, // Enable this as subsection of a previous section
        )
    );
    Redux::setSection(
        'tuts_plus_tutorial', // This is your opt_name,
        array( // This is your arguments array
               'id'    => 'subsectionsection_example_4', // Unique identifier for your panel. Must be set and must not contain spaces or special characters
               'title' => 'Subsection 3',
               'icon' => 'el el-bulb', // http://elusiveicons.com/icons/
               'subsection' => true, // Enable this as subsection of a previous section
        )
    );