Hello @alexandra-reymann ,
Yes, the plugin does work on a multisite install.
By default, only Administrators can see the plugin in WP Admin, but you can allow access to different user roles by adding this code snippet to your theme’s functions.php file:
add_filter('wpsbc_menu_page_capability', 'wpsbc_custom_user_access'); // Allow access to the main backend page
add_filter('wpsbc_submenu_page_capability_calendars', 'wpsbc_custom_user_access'); // Allow access to the Calendars subpage
add_filter('wpsbc_submenu_page_capability_settings', 'wpsbc_custom_user_access'); // Allow access to the Settings subpage
add_filter('wpsbc_submenu_page_capability_backup', 'wpsbc_custom_user_access'); // Allow access to the Backup subpage
function wpsbc_custom_user_access(){
return 'edit_pages';
}