History tab

On the History tab, you can review the processing history of the data as a list of events—algorithms, processes, or both—that have been applied. Each channel and segment, and the file itself, has associated history that you can inspect.

Each element of a history event is as described in the following table.

Element	Description
Action	The type of event action, including any of the following: SystemAction: A system-created action, such as the migration of legacy-history events created in CATALYST Professional 2017 or earlier. LEGACY: A specific legacy-history action migrated to the new history-recording system. Process: An action created by running an algorithm, process, or both. Info: Any change to the data.
Details	Description of the event.
Start Time	Start time of the event in ISO 8601 format.
End Time	End time of the event in ISO 8601 format. Note: If the event was "instantaneous", no value is displayed.

On the Summary tab, you can view a summary of the events in a table (one row per event).

On the Extended tab, you can view the history as text in JavaScript Object Notation (JSON) format.

To save the information to a file in JSON format ((.json)), when available, click Save As.