I'd rather you upload your capx and explain what you are trying to do..
You have to tell the computer which sprite you want to rotate.
I don't see anything in your events telling the computer that.
The biggest issue is how you would like to select the right sprite.
There are many options for that.
- clicking on them and setting a variable
- adding them to a container, so the rotate button is always associated with that sprites
- other events concerning that sprite
- pick nearest
- pick by comparison.
If you know which sprite should be affected, there must be a way you can let the computer know.