There is a User Manual PDF . It's a fairly simple piece of software.
Not sure what you mean by "edit the setting in my Macbook." To which setting do you refer ?
In the first version, which will be the one you have, there is not much interaction. Essentially FactorLib will do the following:
1) get presets from the TF (File/Open from MIDI)
2) allow you to save them on the computer (File/Save)
3) send presets from the computer to your TF (MIDI/Send)
4) allow you to mix presets from different save configurations.