show forumdisplay threadbit topicstarter usergroupid

[PayBas]

In the treadbit template there doesn't seem to be a way to use usergroupid conditionals like:

<if condition="in_array($post[usergroupid], array(5,6,7))">
<span blablabla>$thread[postusername]</span></if>

same goes for this:

<if condition="in_array($thread[usergroupid], array(5,6,7))">
<span blablabla>$thread[postusername]</span></if>

What I wan't is for example that when a moderator/admin creates a topic, I can make their names in the "treadstarter" column be different colors, and even add a small picture behind their name to indicate which group they belong too.

Any help would be appreciated, thx in advance.