Minecraft inventory mod?

Does anyone know the mod (is a mod) with which you can e.g. 64 earth in a box only one earth with one click in the inventory gets, I hope I explained it clearly.

I don't think there's such a mod, why do you need it? But you can also left click and then click the stack down and click l again and again so only 1 is placed. If you have little knowledge of Java (hope don't say anything wrong) you should be able to program something easily.