Keyboard Commands to Manipulate the Overlays
The Overlay Manager is used to create and configure overlays and external projections. After the dialog is closed, you can still manipulate the active overlay with the keyboard. By default, the active overlay is the most recently added one.
You can adjust the vertical offset with the mouse: click and drag the baseline of the bottom overlay; the entire stack will move.
| Action | Shortcut |
|---|---|
| Amplify by a factor of 2 | * |
| Amplify by a factor of 5 | Shift-* |
| Amplify by a factor of 1.1 (Mac only) | Control-* |
| Deamplify by a factor of 2 | / |
| Deamplify by a factor of 5 | Shift-/ |
| Deamplify by a factor of 1.1 (Mac only) | Control-/ |
| Move Left | Backspace |
| Move Right | Delete |
| Clean Background for each overlay | Shift-C |
Horizontal offsets are intended for visual separation only and should not be used to compensate for differences in frequency calibration.
The intensity of external projections and traces is controlled by the corresponding amplification parameters.
You can examine and change these parameters with the Overlay Manager.
Setting an amplification to zero hides the associated projection.
Traces generated by a single mark are an exception:
they are still displayed when their amplification is zero.
They disappear only when one or more overlays are present.