If you created an anchor by clicking (rather than click-dragging) the scene, the anchor does not have any tangents by default. However, you can add a pair of tangents manually.
To add tangents to an anchor
- Select the anchor that you want to add tangents to.
-
+ 
-click and select either Bezier or Bezier Corner from the Marking Menu. - To create an unbroken pair of tangents, select Bezier.
- To create a broken pair of tangents, select Bezier Corner.
A pair of tangents appear attached to the selected anchor.
You can also remove tangents to create sharp corners.
To remove tangents
- Select the anchor that you want to remove tangents from.
- + -click.
-
A pair of tangents appear attached to the selected anchor.
- Select Corner from the Marking Menu.
The tangents are removed.
Note: You can also choose Bezier, Bezier Corner or Corner from the Edit Curves menu, by selecting Bezier Curves > Anchor Presets.