I'm searching for a way to move a group of items but I don't want the user to have to select it first. Is there a way to target an item and how do I find the ID of an item??
In other words, do this, then take this item and move it to here, then do this to this other item, all without having the user manually select an item first.
Tell us more about your workflow: how are the items identified and who does so and how are they changed, etc.?
Probably you want to use a Script Label, which is an alphanumeric tag you attach to an item. Then you can refer to the item with a particular script label later.