Enable post boolean object editing by preserving the object tree

What steps will reproduce the problem?
1.create a cylinder and a cube
2.apply the cut boolean using the cube as the solid and the cylinder as the 
thing to cut out
3. created object can no longer have the cylinder re-sized.

What is the expected output? What do you see instead?

I'd prefer the ability to have the cylinder and cube dimensions adjustable 
AFTER the boolean operation.  This would be much more useful in fine tuning the 
part.

Ultimately a cut operation could be defined as the base object + the subtracted 
object and regenerated if any of the objects were updated/deleted.

What version of the product are you using? On what operating system?
Heeks CNC 0.18.0 on Windows 7

Please provide any additional information below.
I have only used it a short time but the learning curve seems short.  Great job 
so far.

Original issue reported on code.google.com by stuart.g...@gmail.com on 5 Jul 2012 at 11:33

DINKIN / heekscad

Enable post boolean object editing by preserving the object tree #374