OPTION - "back"

While inserting a diagram/game/puzzle, the window has no "back" option. This at times becomes very irritating.

For example - 

1. while entering moves u see there is an extra piece staring at you. so u hv to close the window and do it all over again.

2. though rarely, u get it wrong second time too.

3. it was black to move

4. forgot to flip the board

5. forgot to set begin

6. forgot some variation or entered a move wrong but only noticed it after clicking "next step".

Is this change possible?

I dont know how many other people have the same problem.if u do, please post accordingly so atleast it is known how big/small a problem it is.

P.S. - Love the site anyway!!

nobody else has this problem?

I too have this. Thanks for accelerating this