John, spot on. The Bitmap Fill was one I left to see if others might find it. Your manipulation description is right too, with enough to intrigue those still trying.
@Xara - the Violation error is a nasty and poorly designed alert papering over the simplest of actions a person might make: deleting one of the Blobs and then extending the Timeline.
As handrawn also points out, TimeLine 01 has no up/down counter and no date advancing; pretty useless as a timeline actually.
All right as a Timelime:
Acorn
Bookmarks