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Editing & clipboard

Selection, clipboard, fill, undo/redo, and the fill gestures.

Selection, clipboard, fill​

await sm.copySelectionToClipboard();     // range -> TSV on the clipboard
await sm.cutSelectionToClipboard();
await sm.pasteFromClipboard();           // spills from the current cell
sm.rangeAsTsv();                         // selected range as text
sm.fillSelection('★');                   // fill the range (read-only cells skipped)

Undo / redo / find / go-to / notes​

sm.canUndo; sm.undo();  sm.canRedo; sm.redo();
final hits = sm.find('Ada'); if (hits.isNotEmpty) sm.setCurrentCell(hits.first);
sm.goToRow(2);                           // jump to a displayed row
sm.setCurrentCellNote('review this'); sm.noteFor(sm.currentCell!);

Series fill / flash fill​

// Seed a pattern, select the column, extend it (2,4 -> 6,8,10…).
sm.setCurrentCell(rows.first.cells['n']!);
sm.extendSelectionTo(rows.last.cells['n']!);
sm.fillSeriesDown();

// Flash fill: seed one example, infer the transform for the rest.
sm.flashFillDown();