how to display only to certain user

[control1110]

I know the code to display code to a usergroup is
<if condition="is_member_of($bbuserinfo, x)"></if>

but what is the code to display only to a one userid?

[Peter85]

Havnt tested myself but i think

<if condition="$bbuserinfo['userid'] == x"></if>

should do the trick.