Configurable capability

I made a change in class.phimind.php on line 78.
To change the capability ‘edit_plugins’ to ‘eeplus’

And in my plugin i’ve added:

register_activation_hook( __FILE__, array("pnct_excelExport", "add_permissions") );

class pnct_excelExport{

    function add_permissions(){
        global $wp_roles;
        $wp_roles->add_cap("administrator", "eeplus");
        $wp_roles->add_cap("editor", "eeplus");
    }

}
new pnct_excelExport();

It would be easy if you changed line 78 like this:

$capability = apply_filters('phimind_excel_export_capability', 'edit_plugins');
add_submenu_page( ... , $capability,  ... );

Or you could set it fixed to something like ‘eeplus’, like I did.
In that case it would be nice if you’d include the first piece of code with ‘add_permissions’.
And then add a filter so others are able to change the affected roles.