When chain geometry is in effect, the ending point of one entity automatically serves as the starting point for the next.

Chaining geometry affects only the creation of the entities. Once you have created them, you can select and move each one separately. To make drafting entities stay in relative position to each other, use the parametric drafting commands, or use Sketch > Draft Group to create a group of separate objects.

You can chain circles and ellipses together when they use the same centers. Once you have established the center of the first ellipse or circle of the chain, the system uses it for every circle or ellipse that follows, until you end the chain.

When chaining is activated, a small square indicates the point from which the chain continues. If you select points with the left mouse button, the chain continues; if you select them with the middle mouse button, the system creates an endpoint and the chain pauses, or stops at that point.