He delighted people with his charm and 'ease' of manner. [=his relaxed and easy manner]
The students might respond better if the teacher 'eased up on' them a little.
These features can be modified 'with the greatest of ease'. [=very easily]
(..) Explain 'em to me. Louder, please. I can't... You're gonna have a tough time in this world, Charlie. To ease the blow, let me buy you a drink. Come on. FRANK: Double Jack Daniels on the rocks. And bring my young friend here a Shirley Temple. Hold on. Do you have beer? (..)1992 Scent of a Woman