Separating Grouped Items

Im relatively new to the game.

How do I separate items that are grouped? For example, if I have 5 Tanned Hide Squares, how do I split it in 2 icons, one say with 1 tanned Hide square, the other with 4 tanned hide squares?

Thanks.

I dont' think you can.. Why would you want to?

You can put in an ammount when you trade, or sell..

Did you try putting some in storage, and then click and drag that back to your bag, but in a different slot? I think that works, because I remember having to combine the bones in to one stack manually one time.

Popps97: oh i didnt know you could do that. Thanks for the tip.