To preview your recording, click Preview.
To play from a specific point, position your pointer over the recording, swipe left or right to position the black line (or drag the scroll bar), then click Preview.
To stop the audio, click Pause.
To edit your recording, click Edit, then do any of the following:
Re-record a section: Drag the blue handles to select the section. Click to delete everything inside the handles.
When you’ve finished editing, click Done.
On the slide where you want to add the recording, click Insert, then drag sidebar on the right.
Click Record in the sidebar.
The recording window appears.
To start recording your presentation, click Use object styles in Keynote on MacPosition and align objects in Keynote on Mac