Hi,
Please paste this code in wp-admin>plugin>editor>WPLMS customizer plugin
add_action('init',function(){
$teacher_capability=array(
'delete_posts'=> true,
'delete_published_posts'=> true,
'edit_posts'=> true,
'manage_categories' => true,
'edit_published_posts'=> true,
'publish_posts'=> true,
'read' => true,
'upload_files'=> true,
'unfiltered_html'=> true,
'level_1' => true
);
add_role(
'approved_instructor',
__( 'approved instructor' ),
$teacher_capability
);
});
After that add this plugin :
https://wordpress.org/plugins/user-role-editor/
Use this plugin to edit certificate capabilty for this role and after thet you can achieved what you want.
Refer :
http://prntscr.com/j0nn26