PanDrag to move, scroll to zoom.
DrawHold and drag to sketch freehand in the selected colour and width.
LineClick to drop points. Double-click or Enter finishes, Esc cancels.
MarkerPick a marker, then click the map to place it. Drag placed markers to reposition. Colour tints, Scale resizes, Rotate turns.
TextClick the map and type a label. Uses the current colour, Scale, and Rotate.
EditIn Pan mode, click a placed marker or label to select it: Scale, Rotate, and colours then edit it live. Delete removes it, Esc deselects.
EraseClick any drawing, marker, or label to remove it.
Ctrl+ZUndo the last item.
Save / LoadPlans save as .json files you can share and reload later.
Export JPGRenders the current view plus drawings to a high-res image.