When I started learning Blender, I struggle to understand why my playback was sluggishly slow. Couldn’t really find a quick solution without having to clicking here and there until I stubble across this switch. Doesn’t make sense in terms of the UI labelling. Anyhow hope this helps for anyone stuck.

1. At the bottom of the timeline, click on the Playback button.

2. Go to Audio, select No Sync and change this to Frame Dropping.(This will drop frame rates with complex scene for a more like real-time playback)3. Press the Play icon or Spacebar to play your animation. Your [...]

1. Create an Empty (null) by pressing Shift A and select Plain Axes.

2. Select all objects and then select Empty as your last selection. (If you use box select, deselect empty and reselect it again. Selecting the Empty last will make the empty the parent and the object the child.)

3. Press Ctrl P to Parent object to Empty and select Object (Keep Transformation).

4. Press N to bring up the transform panel. (If you can not see the transform information click on the Item tab on the side.

5. Go the Rotate Z field and right mouse click and select Insert Single Keyframe.

6. On the [...]