hop_depth_control

A * * − / value / + * * button pair ( not a 1 - hop / 2 - hop toggle ) sets global_hop_depth.
- Minimum hop depth is 1 ( direct neighbours only ); * * − * * is disabled at minimum.
- Maximum hop depth is capped ( default 4 for the activity bar ); * * + * * is disabled at maximum.
- Changing global depth rebuilds reqlan_context_model, refreshes graph / refs / ancestors panes, and updates context_footprint.
- When no effective_center_id exists, depth still updates session state; panes refresh when a centre appears.
- Legacy `setIncludeIndirect` maps to depth 2 / 1 for backward compatibility during migration.

Interactive page: hop_depth_control