2.3.4. Snapshots
The snapshots feature allows you to take a snapshot of the current histogram. This can be useful for comparing histograms.
Each source/target/output signal has its own snapshot. The snapshots are persisted with plug-in state, so they will be available when you reopen the project.
Snapshots can be operated using the popup menu or via keyboard shortcuts.
The following snapshot parameters are available:
- Save/clear snapshot (saves or clears the current histogram) - Source = Cmd + 1
- Target = Cmd + 2
- Output = Cmd + 3
 
- Fill snapshot (fills the area under the snapshot) - Source = Cmd + Alt + 1
- Target = Cmd + Alt + 2
- Output = Cmd + Alt + 3
 
- Show/hide snapshot (shows or hides the snapshot in the visualization) - Source = Cmd + Shift + 1
- Target = Cmd + Shift + 2
- Output = Cmd + Shift + 3
 
On Windows, use Ctrl instead of Cmd.