Report Builder needs an "undo" option

[#1]

Unfortunately, you cannot utilize the normal undo functionality in Excel to undo deleted or bad requests.

[#2]

There are many instance i faced this issue. Instead of copying the request mistakenly i used to delete the request and it made me to build the request again with all the parameters. However this problems happend me 1 in 100 request.

Still its a good thought.