Keyframe Editing

It will be active by default, but you can toggle it with the key-shaped button in the toolbar.
Creating Keyframes
There’s three ways to create a keyframe for a property track:
Change the property that the track is bound to, a keyframe is created at the current playhead time
Right-click on the track in the timeline, and select Create Keyframe in the context menu
Toggle Create Keyframe on Click either by holding Shift or pressing the button in the toolbar, then clicking in the timeline
Copy the scene view’s perspective into a selected camera with Ctrl+Shift+F
Interpolation Mode
Each keyframe can choose between three different interpolation modes:
Linear - change at a constant velocity
Quadratic - ease in / out, with 0 velocity at the keyframe
Cubic - move along a smooth spline connecting keyframes
You can combine different modes for neighbouring keyframes to make animations ease in or out.
Automatic Track Creation
For convenience, you can enable this mode to create tracks whenever you touch something in the scene. This helps the most when you’re changing lots of properties on many objects, so you don’t have to manually created dozens of tracks.