SIGVIEW offers two ways to display multiple signals in a single window:

Stacked View

Signals are arranged one above another, each on its own horizontal band. This is ideal when you want each trace visually separated but aligned in time (e.g., EEG, ECG).


Overlay View

All signals share the same axes and are drawn on top of one another, color‑coded for easy comparison.


Creating a New View

You can generate either view in two ways:

From the Control Window

  1. Select two or more signal windows.
  2. Right‑click in the blank area of the Control Window to open the context menu.

  1. Choose Show selected in Stacked View for Stacked View, or Show selected in Overlay View for Overlay View.


From an Existing Signal/Overlay Window

  1. Right‑click on the window’s content.
  2. In the context menu, click on any unchecked signal name to add it to the current overlay.



Adding Signals to an Overlay


Each included signal appears in a unique color and is listed by name in the overlay context menu.


In the Control Window, the link between each original signal and the overlay matches that signal’s color for quick cross‑reference.



Switching Between View types


Press Ctrl + S at any time to toggle between Stacked and Overlay views of the same signals.



Reordering Signals


Press Ctrl + Z to rotate through your signals:


In Stacked View, the vertical order shifts.


In Overlay View, the color assignments cycle, effectively changing which signal’s units define the axes.



Handling Mixed Lengths and Units


Overlay View always adopts the coordinate system of the first signal added (displayed in red).


When signals have different lengths or units, SIGVIEW rescales them to that first signal’s axes—use Ctrl + Z to promote another signal’s scale.



Zooming and Navigation


Overlay windows support the same zoom and pan controls as individual signal windows, including mouse‑wheel zoom.


Any zoom or pan action in the overlay is mirrored back to each source window, keeping all views synchronized.



Histogram Display Type in Overlay


When you select Histogram as the display type and overlay multiple signals or sequences, SIGVIEW automatically offsets each signal’s bars side‑by‑side rather than stacking them. This prevents bars from obscuring one another and makes it much easier to compare values across signals at a glance.