It would be very helpful for there to be an Undo or Redo functionality in Analysis Workspace, in particular in relation to adding and removing Dimensions, Segments or Metrics.
For example, currently if you accidentally add or remove a particular breakdown or group of metrics, it can be frustrating to manually redo.
Thanks in advance,
Will be released in the January maintenance update.
Great news! Thanks for the quick response, Ben.
This is available as of 21 Jan 2016. Redo will be coming soon, but I'm going to go ahead and mark this as implemented (since Undo is the more critical piece).