Lines on the canvas are more than just edges between elements. You can change line weight, dash style, curve type, arrowhead, color, and add labels — or quickly connect and disconnect a group of elements with a single shortcut.

Drawing a Line

• Toolbar: Pick the Line tool
• Keyboard: Hover the canvas and press L

Click an element's edge to start the line, then click another element's edge to attach it. The line stays attached as you move either element.

Line Style Options

• Weight: Thin, medium, thick
• Dash style: Solid, dashed, dotted
• Curve type: Straight, smooth curve, right-angle (orthogonal)
• Color: Pick from the palette or use the eye dropper

Arrowheads

• None: A plain line — for grouping or pure connection
• Single: Arrow on the end — direction of flow
• Double: Arrows on both ends — bidirectional
• Open / closed / filled: Different arrowhead shapes for visual variety

Line Labels

Add a text label on a line to describe the relationship — "depends on", "leads to", "alternative". Labels stay attached as you move endpoints.

Connect & Disconnect Multiple Elements

Select multiple elements and use the Connect dropdown:

• Connect in Sequence: Cmd/Ctrl + Shift + L
• Connect to Hub: Cmd/Ctrl + Shift + H
• Connect as Loop: Cmd/Ctrl + Shift + E
• Disconnect: Removes all connections between the selected elements