How to undo the wrong set when assigning material


VC is very convenient to output animation for industry,which is easier and faster.

Before animation is generated, sometimes ,it’s necessary to adjust the color according to the need.

But, I found it has a little problem that I can’t undo the wrong set when assigning material. Sometimes , I just click the wrong button ,such as assign color to whole component ,which leads to my assigning work be done in vain. I can only open the previous VCMX and start again。

Is there anyway to solve or any possibility can be solved in the future version?