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Observed behavior: When the group is shown again, the columns that were previously hidden within the group become visible.
Expected behavior: The hidden/shown state of individual columns within the group should be preserved even after the entire group is toggled.
Grokky note:
Confirmed as a missing feature. The docs (help/visualize/viewers/grid.md) describe column groups only for bulk selection/movement and toggling via filters — there is no documented preservation of per-column visibility state when a group is collapsed and re-expanded. The JS API (js-api/src/grid.ts) exposes individual GridColumn.visible and GridColumnList.setVisible(), but the group toggle does not appear to snapshot and restore those individual states.
Steps to reproduce:
Observed behavior: When the group is shown again, the columns that were previously hidden within the group become visible.
Expected behavior: The hidden/shown state of individual columns within the group should be preserved even after the entire group is toggled.
Confirmed as a missing feature. The docs (help/visualize/viewers/grid.md) describe column groups only for bulk selection/movement and toggling via filters — there is no documented preservation of per-column visibility state when a group is collapsed and re-expanded. The JS API (js-api/src/grid.ts) exposes individual GridColumn.visible and GridColumnList.setVisible(), but the group toggle does not appear to snapshot and restore those individual states.