Hologram Janeway's temporal settings.
Temporal settings were systems used to track and monitor the passage of time on a starship.
In 2383, Hologram Janeway's temporal settings on the USS Protostar were disrupted by an approaching tachyon storm. When the ship was fractured into several parallel pockets of oscillating time moving at different speeds, Hologram Janeway was able to move between them by adjusting her temporal settings, aiding the crew in fixing the anomaly by passing information and schematics between them. (PRO: "Time Amok")