λ-Sequencer, version v_06326d2
Marquee selection on the rack canvas.
- Box-select: click and drag on empty canvas to rubber-band-select modules — every module the box touches is selected live as you drag. Shift-drag adds to the current selection.
- Selected modules move as a group (drag any header) and can be deleted together (Del), via the existing multi-select machinery.
- A plain click on empty canvas still just deselects; the box only appears past a small drag threshold.
- Works at any zoom level and joins edge auto-scroll for selections larger than the viewport.