You can add a finish effect to a line. You can only apply these effects to a piece edge without stitches connecting to another piece/line.
To add the effect:
On the Main toolbar, click Select.
On the Horizontal contextual menu, ensure Pieces is selected.
In the 2D window, click the edge to which you want to add an effect.
Go to the Context view.
In the Edge Properties section, at Finish Effect, click
The available effects are displayed:
Click the effect you want to use
The following image shows an example of a Rounded finish effect: