Use the Manipulators to quickly change your object's:
These are known as transformations. When you've selected which one you want to change, you'll see axis or arrows appear in the Viewport. Click and drag these, or the object itself, to change the transformation.
Select which transformation you want to change using the icons in the Toolbar:
In the example below, we clicked the second icon - for scale.
We then dragged the blue axis to change the scale of the box and diamonds.
If part of the manipulator is greyed out, it means you can't change that transformation for the object you've selected.
When an object is a child of another object, it can either be transformed:
Below we're changing the the diamond's position along Global co-ordinates. The axis match the icon in the bottom left, which shows the global the orientation of the space:
These axis change when we switch to Local, because they're based on where the object is positioned within its parent.
Choose Pivot or Center to switch between manipulating an object around its own pivot point, or a central pivot point.
You'd usually use this feature to transform multiple objects, either around their individual pivot points or a central point.