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]
(..) Prisoners do not speak unless spoken to. Any prisoner talks back, spends the night... ln the box! We get it. At ease, soldier. They're neutralized. But remember, they'll say anything to make you doubt yourself. Don't worry, Commander. Any doubt l had got pounded out of me at the academy. (..)2010 Toy Story 3