New XOOPS user here...

I've just installed xDirectory, and have been able to edit the xDirectory templates to get it looking how I want, but I've hit a brick wall...

Is it possible to show the child category listings in the parent category?

E.g - for an accommodation directory - if I was looking at Apartments, I'd like to see all the listings in Paris & London (and any other child category listings under Apartments). Then when I click Paris, I'd like to just see the Paris listings.
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Accommodation
SUBCAT- Apartments
SUBSUBCAT - Paris
SUBSUBCAT - London
SUBCAT- Houses
SUBSUBCAT - Paris
SUBSUBCAT - London
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I've tried a few things with xdir_viewcat.html but can't work it out.

Any ideas anyone?

Is xdir_viewcat.html the right place to look? Or will I need to muck around with the sql stuff?