[ericgtr]

Sure, this can be done with a condition in the navbar template, here's an example:

Let's say your category is forumid 1, wrap the condition around the link you want to add like this:

    <if condition="in_array($GLOBALS[forumid], array(1))">
		<td class="vbmenu_control"><a href="mylink.php">test</a></td>
		</if>

You may also add more forumid's to this same array if you want to use the same links for more than one category:

    <if condition="in_array($GLOBALS[forumid], array(1,3,5))">
		<td class="vbmenu_control"><a href="mylink.php">test</a></td>
		</if>

You can use this for as many different navbar links as you want, just change the forumid accordingly.