The list of positions states every x position of the hot bar. For example, the sword should be at the fourth slot in the hot bar. Whoever uses this should place the sword at Y: -125 and X: -27. Keep in mind that no matter what position any item is in while inside the hot bar, the Y position should be at -125.
awesomeal82 for phrog :) Click 1 to go to the first item slot. Click 2 to go to the second slot and so on. Change the variable "TNT position" to the number "1" if you want the TNT item to be put in the first item slot. This can be done with any item and any item slot you want. If you add more items besides the example items, just remember to make a variable to go with it and copy my premade code.