I have been using TurboCad v10.1 Pro for some time, despite also having v14 ; always simple drawings in 2D. The Computer is about to go into the pool through stress and frustration unless I solve my problem ! ! ! I am trying to produce a Plan view, front view and 1st and 3rd Angle projections of a Concrete Plant. Over the years I have accumulated many drawings of various components. Starting with one component, say a Hopper, I then copy and paste a conveyor drawing , then maybe a Silo etc., etc., placing the new component to its required position. It becomes necessary to edit and change some of these components. In so doing, some of the previous imported components end up in different locations than where they were originally placed. There then appears to be no way that it is possible to "undo" the previous actions to maintain these "moved" components back to the original required location. As a result I end up having to start the drawing all over again !.. ultimately ending up with the same problem.
My limited experience suggests that it is either a programme set-up problem, although I believe I am in 2D ; or otherwise "Workplanes" .. and I'm afraid I've yet to get my head around "work-planes" .
Any help would be appreciated.