Give access of horizontal scroling plugin to user role editor

function HSA_add_to_menu() 

    {

        add_options_page('Horizontal scrolling announcement',  __('Horizontal Scrolling', WP_hsa_UNIQUE_NAME), 'edit_others_posts', 'horizontal-scrolling-announcement', 'HSA_admin_options' );

    }

http://codex.wordpress.org/Roles_and_Capabilities#Editor

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