Is there a button to Undo in the VAB?

[StrandedonEarth]

My greatest frustration in the VAB is when tweaking a design. I can have a design with symmetric strapon boosters and say I want to tweak a strut or fuel crossfeed line. If I miss when trying to select a small part, suddenly all the boosters are off the rocket and have to try to put them back on . This is more frustrating when some of the strap-ons have been individualized. If only I could just press Esc and everything goes back to how it was. Is there a button I just haven't found yet or can the feature please be added in future update? I shouldn't have to save it after every single change but that (reloading) sometimes seems to be the easiest way to correct for when I accidentally remove parts.

[UmbralRaptor]

Control + Z, much like other programs.

[StrandedonEarth]

Ok, that was weird. Ctrl-Z was the second thing I tried after Esc and it didn't work. Trying it after reading this post it still didn't work, at least not right away. Eventually it worked in a hit-and-miss fashion. After a little more fiddling it worked every time. Odd.

Thanks!

Now if only I could figure out how to change this thread to "Answered"

Edited November 18, 2013 by StrandedonEarth

[Specialist290]

For future reference, you can Edit your initial post, then choose "Go Advanced" to change thread tags.

That being said, since you've requested it, I went ahead and used my magical moderator powers to do so for you

[nhnifong]

Just for the record, it's Cmd Z on a Mac.

[Barefoot Friar]

Thanks for this. What the OP describes is the Single. Most. Frustrating. Thing. about KSP. I've decided that it happens more to me on this computer than on my old one because this one isn't as fast. I think it occurs when you click something and then move the mouse before the click registers. Most of the time, when you're not running a memory- and processing-intensive app, such as a web browser or word processor, the time between click and action is much smaller. But in KSP, particularly in the VAB and SPH, there is an appreciable delay. When I take my time and hover my mouse over what I'm clicking for a moment until I see that the click has registered, it doesn't do that. Perhaps when I've upgraded my machine it won't be as bad.

[Seret]

Ok, that was weird. Ctrl-Z was the second thing I tried after Esc and it didn't work.

It does take a few seconds, be patient. Results can sometimes be a little idiosyncratic, too.

[numerobis]

It's slower to undo than to reload, and undo often doesn't do what I expected. Therefore I just save often and reload when I mess up.