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Three complaints, one cause each. **Handles appeared on a lane nothing could move.** A carve's lanes are read-only — a re-run rewrites them, so an edit there is lost work — but they still lit their point handles on hover like every other lane. The report was "I lost the ability to drag automation points": the affordance was the whole promise, and it was false. `pointHandleOpacity` now keeps them hidden unless the lane is actually editable, while a drag or a selected range still shows them, because those states are the ones where the handles are the feedback. **Nothing said why.** Hiding the handles alone turns a lie into a mystery. Hovering a read-only lane now shows a note inside it, and for a carve lane the note says where the control actually is — the strength knob in the FX rack, or switching the carve off to take the envelopes over by hand. **Group lane labels scrolled away.** The group header was sticky and its lane labels were not, so the labels slid under the curves while the header stayed. They are one column and now live in one sticky wrapper. Wrapping only the labels is what the first attempt did, and it is wrong: as a flex item after the header the wrapper starts at `x = columnWidth`, so at scroll 0 the labels render inside the lane area — which is what the screenshot caught. The lane title is now `laneTitle()` and the note `ReadOnlyNote`, which is what keeps the file under the complexity gate.