Wirecast was designed to have as few application-wide preferences as possible, so that most of your options are configurable into the document or shot.
Accessing Preferences
The preferences window can be opened by selecting "Preferences" in the "Wirecast" menu (or Command-,).
Preference pages
Preferences are grouped in Pages in Wirecast.
Click one of the 3 icons in the top of the Preferences window to change the page of preferences you are currently editing.
These are the pages available in the preferences window:
General -- general options
Performance -- application performance options
Register -- application registration
Software Update -- keep your software up-to-date
Advanced -- advanced options
Saving preferences
Wirecast saves your preferences every time you make a change, and all changes are immediately applied throughout Wirecast.