Hi everyone!
Jakarta Soekarno-Hatta International airport opened a third runway in 2019. The new runway is called 06/24 and is parallel to the other two runways and has increased aircraft movements by 30%. We tent to usually have more slots in game than there are in real world airports but a 30% increase to the current 9 slots per 5 minutes should make it 12 slots per 5 minutes. This is also similar to other airports which have 3 parallel runways.
Source: https://www.flightglobal.com/soekarno-hatta-third-runway-enters-service/133935.article