Overlaying channels from multiple modules

The left sidebar lists every channel in every loaded module, grouped for readability. Ticking a channel plots it; the whole point of Overtrace is that channels from different modules share one time axis.

Finding channels fast

Selecting many channels at once

Click a channel to toggle it. To toggle several quickly, press and drag down the list — Overtrace paints the same on/off state across every analog row your pointer passes, then redraws once when you release.

Digital signals and “No Data” entries aren't included in drag-select — only analog channels are painted, so you won't accidentally flip event flags.

Long channel names

Channel names are never truncated or wrapped. Each channel section — an analog group, Digital Signals, or No Data — scrolls sideways on its own, so a fully qualified name like Engine_1.Cylinder_3.ExhaustTemp_DegC stays readable without widening the panel.

Colors

Each channel gets a distinct color when it's created, and each module has its own accent color, so overlaid traces stay tellable apart.

The cursor readout carries those colors through: in the hover readout every channel name and its value are drawn in that channel's line color, next to a small square swatch. The same coloring is used in the locked-cursor and measurement readouts, so a number always ties back to a line.

Readout text size

Next to the Cursor dropdown in the Tools row there's an A− / A+ pair with the current size between them. It sets the text size of the cursor readout box, from 10px to 22px in 2px steps, and the choice is saved in your browser so it comes back next time.

Ctrl + = / Ctrl + −Grow / shrink the cursor readout text
Cmd + = / Cmd + − (Mac)Grow / shrink the cursor readout text
Working with a second monitor? See Synced windows — the peer window's cursor time is resolved against this window's own channels, and the values appear in this readout box.

FAQ

Can I overlay channels from different modules?

Yes — that's the core feature. Tick channels from any loaded module and they all plot on the same shared time axis.

How do I select many channels quickly?

Press and drag down the channel list to paint the same on/off state across many analog channels at once, then it redraws when you release.