You guys DO realize that buildbot seems to be functionally identical to saved build macros?
It is a bit smarter than a macro.
It can correct errors that can pop up when you save a build in one direction, then load it in another, and it can try to correct some errors as it builds. It can also stop partway through a build, then continue it again.
Chrono, if you didn't see in the other thread, I was looking for permission to use your edits as v2 of the RTB version. You will get credit of course.