[AlexanderT]

Originally Posted by sjau

Can this hack be modified, so that only certain user(groups) get access / can fill in those extra profile fileds?

I guess so... all you have to add the following changes to USERCP_SHELL instead of the ones mentioned in the hack description:

<if condition="$bbuserinfo['usergroupid'] == XX">
<tr>
	<td class="$navclass[extra]" style="white-space:nowrap"><a class="smallfont" href="profile.php?$session[sessionurl]do=extra">Extra Info</a></td>
</tr>
</if>

Where XX is the usergroup you want to allow access.

Note that this is not fool-proof. A user who KNOWS that there is such an extra field section and who knows the url can access it directly. In this case, I guess adding some php code would do the trick.