1. Math Operators

Since Sketch 51 it is be possible to use math operators in Inspector for width, height, x, y, rotation, etc. This means you will be able to select multiple layers (with “multiple” values) and change all of them with stuff like +100, *3, etc.

By default, Sketch will use the top left corner as the anchor point when changing an element using Inspector. However, you can override this by appending [r] when changing the width or [b] when changing height.