This is untested for the Project 7 menu but should be there or nearly there!
Create a file named project-seven.config.php with the following code in it:
<?php
$startId = 0;
$level = 2;
$hereClass = '';
$firstClass = '';
$selfClass = '';
$lastClass = '';
$levelClass = '';
$innerClass = '';
$parentClass = 'trigger';
$outerClass = '';
$outerTpl = '@CODE:<div id="main-nav">
<div id="menuwrapper">
<ul id="p7menubar">
[+wf.wrapper+]
</ul>
<br class="clearit">
</div>
</div>';
$rowTpl = '@CODE:<li[+wf.classes+]><a href="[+wf.link+]" title="[+wf.title+]">[+wf.linktext+]</a>[+wf.wrapper+]</li>';
$parentRowTpl = '@CODE:<li><a [+wf.classes+] href="[+wf.link+]" title="[+wf.title+]">[+wf.linktext+]</a>[+wf.wrapper+]</li>';
?>
FTP into assets/snippets/wayfinder/configs/
Add the link to your CSS file into the head section of your template.
Use this snippet call in your template:
[[Wayfinder? &config=`project-seven`]]