just:in linux features two different Capture Modes:
Crash Recording: record on the fly (Default Mode).
Scheduled Recording: record Clips based on macOS Calendar Events.
Select a Capture Mode
Select one or more Channels in the Channel Viewer Area (Multi-Viewer). Open the Inspector and switch to the “Settings” tab. Choose between “Crash” and “Schedule” modes by using the dropdown box next to the Channel Name.
