The default guideline Type is Line.
A guide Plane can be created from any guide Line when you select Plane (this can also be done interactively using the
The guide Plane has three Handles (and a different icon in the Object Manager).
Depending on the active tool, they work as follows:
You can also simply create guidelines by running the cursor along both edges that border the corner with no Handle until red points appear. Here you can pull out parallel guidelines that will be made Child objects of the guide Plane. This way you can create additional basic working planes, if necessary.
A guide Line can have an Infinite length in either direction, can stretch in only one direction starting from a defined point (Halfline, or it can be created as a Segment with a starting and an end point.
Only available if Type is set to Plane and Spatial Mode is enabled. The three guidelines will be centered and thus made symmetrical.