Suggestions: Undo, Line around object, Number

I noticed that the undo doesn´t undo when you move an object or a bundle of objects with the X/Y values in the properties of this object.

Here a second suggestion: live update when changing the value/s without the need of hitting enter would be a neat feature <img src="/center/images/graemlins/smile.gif" alt="" />

Another thing that could need an improvement is the blue line around a selected object in the frame editor. Sometimes you have to see how your piece of graphics fits at its place. I always have to deselect to see if it is correct. Same goes for the number that appears in the upper left corner of a selected object. The upper left corner is an important one for me ^^

What about making it semi transparent? Or a broken line? Or a hot key to make it temporary invisible?