zentao/extension/ipd/block/ext/config/zentaomax.php

<?php
$config->block->size['waterfallproject']['waterfallrisk']     = array(2 => 6, 1 => 6);
$config->block->size['waterfallproject']['waterfallissue']    = array(2 => 6, 1 => 6);
$config->block->size['waterfallproject']['waterfallestimate'] = array(1 => 5);
$config->block->size['waterfallproject']['waterfallprogress'] = array(1 => 5);
$config->block->size['waterfallproject']['waterfallreport']   = array(2 => 5);

$config->block->size['scrumproject']['scrumrisk']  = array(2 => 6, 1 => 6);
$config->block->size['scrumproject']['scrumissue'] = array(2 => 6, 1 => 6);