Middle-click pan in mouse navigation mode
Box Canvas already handles this correctly for trackpad users - in trackpad mode ("Swipe two fingers to pan"), a two-finger swipe pans the canvas regardless of which tool is active. Mouse users don't have the same experience.
In mouse navigation mode, middle-click is a duplicate of left-click across all tools and scenarios. There is no way to pan while the Select tool is active without first switching to the Hand tool, breaking the editing flow on large canvases.
This has been raised in a related request (Explain navigation mode https://pulse.box.com/forums/909778-help-shape-the-future-of-box/suggestions/46235944-explain-navigation-mode), but the core behaviour gap deserves its own focused fix: extend the same "pan in any tool" logic that trackpad mode already applies to middle-click in mouse navigation mode.
The ask:
In mouse navigation mode, reserve middle-click for panning regardless of the active tool, bringing mouse users to parity with the trackpad experience that already exists.