Recurring payments subscriptions with ZC and Paypal Express ?

This is more a request for information really - has anyone managed to set up reoccurring payments (using paypal)?

I cannot find any plugins or details or anything - but also understand that most of the work will be dealt with via paypal - you certainly don't want any CC details stored on the ZC server for example!
- but then it needs to insert a new order into ZC to match these subscription payments too

any thoughts, advice, ideas or what others have done?

Thanks
Sarah