Creating Shortcuts from Items in Inventory

[Stever1388]

Basically I want to take items that are in the inventory and create shortcuts out of them, so that I can then create quickslots. However, you need the string Data of the item to be able to create the quickslot, and as far as I can tell, the only way to get that string is to add the item to a quickslot and then output the result. Is there someway to gather the data string needed to create a shortcut from items in your inventory without knowing what is actually in your inventory?

I've tried using ItemControl, but it doesn't create the type of quickslot that you have on your mainbar, for instance you can't left click on a potion to use it, you either have to right click it or double left click it (as if it were in your inventory).

Any help would be appreciated. Thanks.