Thank you for your question... you can simply create any symbol you like for a non-publicly traded security as provided by your broker account, or use the symbol as provided on their statements to you. If you use the same symbol as they provide, then you should be able to download ongoing activity for these funds as part of your transactional downloads. If you create a symbol that does not match that used by your broker, then prior to posting activity, you'll need to 'map' the activity to the symbol you create.
If you have add'l questions, please contact our technical support team directly: techsupport@investmentaccountmanager.com
Matt