Can jinn or angels move something without touching it, merely by intending to move it, and is this ability of "Be, and it is" exclusive to Allah Almighty alone?

No one, after Allah Almighty, can say to a thing: "Be," and it is. The power of creatures is limited to what Allah has bestowed upon them. Angels and Jinn possess abilities that exceed human capacity and tremendous speed. Gabriel (peace be upon him) is described as having strength and high standing with Allah. The Jinn have great abilities that enabled them to perform difficult tasks for Solomon (peace be upon him), such as building lofty chambers and diving, and transporting the throne of Bilqis with extreme speed.