Documentation for dialog filters
<?php
add_filter( 'wpmem_register_links_args', 'my_member_links_args' );
function my_member_links_args( $args ) {
// Change link #2. (Note PHP arrays begin at 0)
$args['rows'][1] = '<li><a href=' . home_url( 'my-page' ) . '>Enter the members area</a>';
// Add another link.
$args['rows'][] = '<li><a href=' . home_url( 'some-page' ) . '>My Extra Link</a>';
return $args;
}