I know that's it's not possible to make an element (or anything) out of thin air, but is it possible to manipulate it, I.e. you have a flame in front of you ,a candle, could you use your energy to make it shake and wobble back and forth?
If you mean like in shows like avatar the last airbender. No. But there are people who claim to have control over an element. For most That means they have control over it in a spiritual sense like i can control fire would mean i can control all the aspects of fire in me such as passion and rage. And as for the making it out of thin air, i want to say no but i have seen a Buddhist Monk light something on fire with out any means except ki, chi, or chakra. but that might have been a trick. so in short no but still meditate and feel its energy as all the elements are a good way to focus.