Measuring

Press M to activate the Measure tool, then drag from point A to point B. The distance (nm) appears:

• In the status bar (amber digits, right side).
• As a label at the drag midpoint on the canvas.

Switching to any other tool clears the measurement. No shape is ever created.

Pin a measurement. Press Enter after a measure drag to keep it as a persistent dimension — a labelled distance line that stays on the canvas, survives tab switches and autosave, and is never written to the .gds (it's a draw-only aid, like construction geometry). Pin as many as you like.

Measure an angle. Verify → Measure angle (3 clicks) arms a 3-click angle: click the vertex, then a point on each ray. The interior angle is drawn with an arc and a degree label, and pinned like a distance dimension. Esc cancels mid-collection.

Clear them. Verify → Clear dimensions removes every dimension in the active cell in one undo step. (Distance and angle are the two modes today; radius, edge-gap, and area-box are planned.)