Block Rail & Context Menu
The Block Rail is a compact block navigator. In Survey Editor it also owns context-menu insertion; in Survey Link TEST mode it can be reused as a jump rail without duplicate, delete, drag, or insert actions.
Context menu behavior
- Right click opens a compact context menu.
- Clicking a type-level default adds the default question for that type.
- Nested items add mode or display-style variants.
- Row-aware insert adds after the block under the pointer, not after stale focus.
- Text strings should be i18n-ready constants, not inline one-off labels.
Filter behavior
The Block Rail filter includes search and type filters. Search should include question name, description, and comment. Filters apply live and keep the rail compact.