Select a tool from the left panel before drawing.
Propagator tool: click once to pick a start point, click again to finish the line. Press Esc to cancel.
Vertex tool: click anywhere to add a vertex.
Loop tool: click to place a loop or attach one to the current selection.
Text tool: click to place a label.
Select tool: click to select, Shift+click to set the sub selection.
Right-click anywhere to open the context menu for quick add, delete, or propagator actions.
Drag on the canvas to draw a selection box; hold Shift to add to the current selection.
Drag a selected element to move the whole selection; Delete removes everything selected.
Hold Alt while dragging to start a marquee even when the pointer is above existing geometry.
The Selection actions buttons toggle arrows, cycle styles, rotate arrow heads, and fill loops.
Keep clicking with the propagator tool to chain multiple segments.
Use the Loop controls sliders to resize a loop or adjust the missing segment.
The preset buttons quickly restore a full loop or open common gaps.
Use the arrow keys to nudge the selection by one grid unit.
Press Delete or Backspace to remove the current selection.
Ctrl / ⌘ + Z for undo, Ctrl / ⌘ + Shift + Z or Ctrl / ⌘ + Y for redo.
Ctrl / ⌘ + C copies the selection, Ctrl / ⌘ + E exports SVG text, Ctrl / ⌘ + P exports TikZ.
Press Esc to cancel a propagator draft and return to the Select tool.