How can I simulate / test a sync request from the system ?

I'm developing a CIQ application that downloads FIT-files that are created and maintained on a seperate website. Ideally, I would like to sync them automatically, so I created and registered a SyncDelegate object and the related onstartsync(), isSyncNeeded(),.. functions.

Simple question now is: how can I trigger this to test it? How can I simulate a sync request from the sytem? Can I trigger this in the Connect IQ Device Simulator - I don't see an option for that there (using v3.1.6).