Like most Users I am grateful for the efforts put in to the Development of S3D, this really makes it stand head and shoulders above other Software packages.
Having gained the knowledge that Sketches on Non Active Planes could be altered, it is unlikely that this would have any effect on my workflow.
My Post was to draw attention to the possibility of unintended outcomes, e.g., an accidental Selection on a Non Active Plane in conjunction with concurrent Deletion on the Active Plane could be, at the least, inconvenient?
There are advantages in opting for ‘ready access’ that many Users would appreciate, however it is important to offer a clear understanding of this feature.
IMO it would be best if the User was given the option to Enable Access to Non Active Planes by making a conscious choice, say, by Placing a in a Checkmark Box.