moodle-block_mytreestudyplan/db/access.php

<?php
    $capabilities = array(
 
    'block/mytreestudyplan:addinstance' => array(
        'riskbitmask' => RISK_SPAM | RISK_XSS,
 
        'captype' => 'write',
        'contextlevel' => CONTEXT_BLOCK,
        'archetypes' => array(
            'editingteacher' => CAP_ALLOW,
            'manager' => CAP_ALLOW
        ),
 
        'clonepermissionsfrom' => 'moodle/site:manageblocks'
    ),


);