...
Directly on the component in the App Builder, in the Title Fields property
Programmatically (if you are wrapping the component) through the titles property.
Multi Scheduler Example
Code Block <B25:multiScheduleWrapper titles="Name,B25__Start_Date__c" ... (set other properties here) />
Single Scheduler Example
Code Block <B25:scheduleWrapper titles="Name,B25__Start_Date__c" ... (set other properties here) />
...