I'm not sure I understand. My syntax in short-form basically looks like this:
<group collapse="closed">
<header>Tracklist</header>
<data source="release">
<format>{{#switch:{{{release}}}
|[[-I'll- (1998)]]={{Ill}}
|[[ARCHE (2014)]]={{Arche}}
|}}
</format>
</data>
</group>
Now, what I want is this whole group to only show up if {{{release}}}, which appears earlier in the same infobox, is "[[ARCHE (2014)]]", and then display the contents of {{Arche}}. If {{{release}}} is "[[-I'll- (1998)]]", I don't want the entire group to appear. Of course I'd remove the |[[-I'll- (1998)]]={{Ill}} as well, it's just for illustration in the example above.^^