Navigating the plot The plot pans and zooms with the mouse and with the keyboard. Every gesture acts on the row the pointer is over, and because the rows share one time axis, an x change moves all of them. How to reach it Wheel zooms both axes · Shift+wheel zooms x only · Ctrl+wheel zooms y only. Drag pans · Ctrl+drag is a box zoom on x · Alt+drag a box zoom on y. + and - zoom both axes; Ctrl with them restricts to x, Alt to y. Arrow keys pan, f fits, Escape cancels a gesture in progress. The full table is in the shortcut overview (Ctrl+/). Worth knowing • The keyboard zoom's modifiers are not the wheel's, and that is deliberate: on common layouts + is shift+=, so a bare zoom-in already arrives with Shift set and Shift could not mean anything. Ctrl/Alt mirror the box-zoom drags instead. • A pinned view is navigable within its own data but cannot leave it. While an event is held, a capture is filling, or the view is paused, a zoom in works normally — "not outside the event" is not "not readable" — but a pan or a zoom out is clamped to the data. • Nothing you do on the plot changes the time window — only the header control does. A zoom or a pan moves the view inside the window; f (and Fit X axis) is the undo of a zoom, so a 2 s window zoomed into reads 2 s again. The window is more than the axis: it is also the trigger's event span and how the samples are stored, so a wheel notch that redefined it would re-plan the buffer and drop your history. • The axis does not scroll — the data does. A live axis is a fixed [-window .. 0] with the newest sample at 0, so the labels stand still and the trace rolls under them. The cursors stand still with the labels (they are positions on screen, so a cursor you placed stays where you put it, over newer data each frame), while a measurement's marks travel with the sample they measured and leave the view when it does. • A live view is clamped to the window you asked for, not to what the ring happens to hold. That is why a buffer that has only just started filling leaves its left-hand side empty instead of squeezing the window down to the first few samples. • Zooming hard into a held capture is exact. The renderer finds the visible samples by binary search over the real timestamps, never over a nominal sample grid, so a capture whose clock wandered does not drift away from its axis as you zoom. Example Pause a live view, then press Ctrl++: x narrows and y does not move. Press Alt++: y narrows and x does not. Eight doublings into a held 2 s capture, the trace still reaches both margins — the zoom probe reports gap_px and end_px within a pixel or two at every step.