Navigation presets are now a table of bindings (button, required modifier keys, camera mode) instead of string matches. The Alias preset binds Shift+Alt+left to orbit, Shift+Alt+middle to pan and Shift+Alt+right to zoom. A left press with a binding's keys is latched until release, so that drag neither box-selects nor drags sketch geometry; plain left drags behave as before. Shift only requests snapping when the binding without Shift still orbits. The scenario harness sends Alt with ui.drag/ui.click, and camera checks can assert panned/zoomed since the last camera step. The user guide notes Alt+drag grabs by KDE and GNOME and how to free them. Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT Co-authored-by: Claude Opus 5.5 <[email protected]>