I have danish keyboard and i just found out that if you hold down shift and then press the button that has these signs on it ^¨~ you will enlarge the object. And to make objects smaller you need to hold down shift and press Å. Apparently that is where these are on the american keyboard.
I also somehow lifted up an object one time by pressing 9 but this doesn't work anymore. It happened one single time! darn it. I miss it already :/ It must have been a glitch for a second.
It just changed for some reason. now it is shift and Å for enlarging and shift and `´ for making them smaller. I really dont know why this is changing :/