Key traydrag into the tree
Search
Delete
42 or 10, 20, 5) and press Insert, Search or Delete. Enter inserts.20 60) — one search down, then a walk along the linked leaves.| Space | Play / pause |
| → ← | Next / previous step |
| Home End | Start of operation / skip to end |
| I | Type a key |
| F T | Fit to view / tidy layout |
| + − | Zoom |
| Ctrl Z | Undo last operation |
| ? | This help |
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