No copying and pasting is required. No doubt the prototype kit could be improved in many ways. Those who are familiar with Virtus WalkThrough Pro may immediately raise two objections to the way it was drawn and presented. First, drawing a wall as an object is specifically not recommended in the Virtus Tutorial Guide. Far less memory is required if a room is drawn as a box, in which the walls have no apparent thickness.
Solid walls look much more realistic, but there is a considerable cost in memory.
Second, in Virtus WalkThrough Pro it would have been more convenient to store the components as library objects. There is a problem, however, with controlling how a library object is displayed when it is first opened. It may be almost off the screen or too close to be recognisable. Although it is not difficult to manipulate the image, it is clearly better if the kit components are immediately recognisable. I believe that virtual kits have significant potential for schools, and I intend to explore possibilities.