[TYPO3-shop] Single view - list of other products

[Iztok Kham]

Hello!

I am struggling with Typo3 and tt_products and would like some help.
Since I can't find any suitable example, could someone point me in the 
right direction on my problem.

I have a site with three main TemplaVoila "containers":
- mainMenu (here's the main menu for site)
- mainBody (most stuff displays here including highlights list and 
category contents etc.)
- rightPane ("container" to hold additional navigation items, eg. list 
of related products etc.)

I have mainMenu and mainBody set-up and working as desired but I don't 
know how to get a list of additional products in a category when 
displaying product in single view.

Example:
- I have 3 products in Category A.
- When user clicks on Category A in mainMenu, a list of available 
products displays in mainBody
- When user clicks on a product in a list in mainBody, the selected item 
displays in place of list (eg. mainBody)
OK, this far everything is OK. However I want a list of other products 
in Category A to display in rightPane

I believe this could be achieved with TypoScript with something like
lib.rightPane = ???

Cold someone give me some clues?

Thanks!

-- Iztok