Links / Lines / Arrows
Connection Line allows you to create links between objects on the board. This is helpful for building diagrams or creating mind maps.
To create a link, select Connection line (or press L), click an object and drag your cursor to another object. You can also select an object and click one of the blue nodes around it to start drawing a link.
Specify arrowheads, line and stroke type, thickness and color of the line in the Connection line toolbar. Line types can also be chosen by pressing L key several times - you will see the icon changing on the Toolbar.
To draw a straight horizontal, vertical, or diagonal line, hold Shift. To disable snapping to other objects hold Ctrl (Cmd).
Drawing a straight line and a standalone line
Draw a single link, double-click its end and choose a new object that will come next. When you draw a link from an object but do not connect it to anything, you can choose what to draw next from the automatic drop-down menu. Choose the same-styled object, a new shape, a sticky note or text.
Creating objects from links