How do I edit this piece of coding (show this a member of _ usergroup)

[The-Ensemble]

<if condition="is_member_of($bbuserinfo, 6)">
If in group 6, show this...
<else />
...or else, show this.
</if>

Ok here's what I want to do.
Show a certain content to usergroup A
and different content to Usergroup B
and different content to Registered users

But I want it to apply to secondary usergroups as well . . .
Can Anyone help me out?