@Xlance

The sweepb3d code is fully functional

I'll see when I see it

P.S. the edit faces, points, edges function is AWESOME

Believe me, it's not my fault!
@Keet

With a single change ctrl+Z should revert that last change. Since there was only one change pressing ctrl+Z again should do nothing, but it executes some weird other changes and never reverts to the original.

That doesn't sound right. I only ran a few quick (superficial) tests before publishing, and it seemed to work.
I tried it again just now and didn't notice any issues.
Please give me a way to reproduce the problem.
It's possible that after multiple edits, "Undo" might produce strange results (I've already noticed this).
There may also be some strange results after restarting the plugin during the same session. This still needs to be investigated.

Look at the Terrain Generator where the arrows at the top execute undo/redo.

You're right. The main difference is that TerrenGenerator was created by a professional (Emmanuel), while this one was made by someone with no training in the field (I'm not a programmer).

You don't want to know how many times I just need one or two more points for a shape

I don't even want to, but I already know. What are friends for? [:(]
Test it some more and let me know what isn't working properly, separate from what you'd like it to do. We'll tackle those requests one by one.