All design steps are recorded chronologically in the Sketch history docking area. The last step taken is at the bottom.

Relations between design steps are symbolized by Relation lines.

The sketch history [Sketch history] can be edited. This means, for example, that you can remove superfluous steps.

With the help of a movable marking (time line) (per default at the bottom of the tree) you can always return to a previous design step.

The line can be moved once the double arrow symbol is shown as cursor.

You can also move the line using the context menu command: To do this, select the last feature to be displayed and click on Set selection [Set mark].

In the Sketch history docking area, a distinction is made between main and subordinate features.