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The tile bar offering _Index and _Dim is a decision the user already made (improvise-kos), and it is the only way out of a records layout that was saved into a real view: R there emits ViewBack on an empty back stack and claims Pivot mode (filed as improvise-gj5p). A new test names the whole offered list with _Measure on a column, so a filter dropping _Measure, or one dropping _Index/_Dim, fails it. Reasoning: context/code/command.md, cmd/tile.rs. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VdfEGXA7aJ6ftMsCc9PJze