I'll help a bit
My users seems to love playing Title Wars with each other.
So, I took this code and adapted it a bit with some help from peeps.
If you want to give them a secondary title (not the one under the Username).
PHP Code:
<if condition="is_member_of($post, 31)"><div style="width:100%; color:white; filter:Glow(color=white, strength=4)">Insert your Title</div></if>
You want to replace the 31 with the usergroup of your choice. And replace the color and strength inside the glow's ().
You can insert those in the postbit_legacy or postbit.
If you have multiple usergroups that you want to have the secondary titles, just do multiple lines of the same code above.

It'll work.
Just thought, I'll help a bit.

Since it is an adaption of the code given.
Cyricx