Following are instructions to create new block:
1. Copy file to respective folders and rename.
2. In main.js file
    a. Import the block js
    b. Add block object in function parameter
    c. Add block object in blocks array
3. In block.js file
3. In lib.php in local_edwiserreports_get_default_block_settings add following array in $block
    'sample' => array(
        'classname' => 'sampleblock',
        'position' => $index++,
        LOCAL_SITEREPORT_BLOCK_DESKTOP_VIEW => LOCAL_SITEREPORT_BLOCK_MEDIUM,
        LOCAL_SITEREPORT_BLOCK_TABLET_VIEW => LOCAL_SITEREPORT_BLOCK_LARGE
    ),
4. In db/access.php add following array in $capabilities array
    'report/edwiserreports_sampleblock:view' => array(
        'riskbitmask' => RISK_SPAM,
        'captype' => 'read',
        'contextlevel' => CONTEXT_SYSTEM,
        'archetypes' => array(
            // Following capabilities are subject to requirement.
            'coursecreator' => CAP_ALLOW,
            'manager' => CAP_ALLOW,
            'teacher' => CAP_ALLOW,
            'editingteacher' => CAP_ALLOW
        ),
    ),
    'report/edwiserreports_sampleblock:editadvance' => array(
        'riskbitmask' => RISK_SPAM,
        'captype' => 'read',
        'contextlevel' => CONTEXT_SYSTEM,
        'archetypes' => array(
            'coursecreator' => CAP_ALLOW,
            'manager' => CAP_ALLOW
        ),
    ),
5. If caching is required then add caching details in db/cache.php file.
6. Add following strings in lang/en/local_edwiserreports.php
    $string['sampleheader'] = 'Sample block';
    $string['sampleblockhelp'] = 'This block will show the sample block.';
    $string['sampleblockview'] = 'Sample Block View';
    $string['sampleblockedit'] = 'Sample Block Edit';
    $string['samplerolesetting'] = 'Sample block allowed roles';
    $string['sampledesktopsize'] = 'Sample block size in Desktop';
    $string['sampletabletsize'] = 'Sample block size in Tablet';
    $string['sampleposition'] = 'Sample block\'s Position';

    If you are exporting data then add following strings
    $string['sampleblockexportheader'] = 'Sample block Report';
    $string['sampleblockexporthelp'] = 'This report will show the sample block exported data.';

    if you have editadvance capability then add following strings
    $string['sampleblockeditadvance'] = 'Sample Block Advance Edit';