No. The C10 Event Participant Visa is issued for one specific event only (the event you received your invitation letter for).
Even though the visa is valid for 60 days, it can only be used for the event that is listed in your invitation letter and visa application. If you plan to attend additional events in Indonesia, you must:
- apply for a new C10 visa, or
- choose a different visa category that matches your activity.
The C10 visa cannot be reused for multiple events.