Continuing this look into the inner working of the command focus keyboard shortcuts from my first post in the series.

Play to, or from, an edit point by the pre, or post, roll settings – alpha keys 6 to 9
When you have a potential edit highlighted this group of commands allow you to

Play up to the selection using the preroll setting – alpha key 6;
Play from the start of the selection by the post roll setting – alpha key 7;
Play up to the end of the selection by the preroll setting – alpha key 8;
Play from the end of the selection by the post roll setting – alpha key 9.

This is very useful for checking whether you have included or excluded a particular element of audio from an edit selection.

Timeline and edit selection commands
These work only when you are working with the timeline and edit selections separated. You can do separate the timeline and edit selections by clicking on the ‘separate’ button that is to the right of the keyboard focus button so it isn’t highlighted.

Copy Edit selection to Timeline selection and vice versa
This is a pair of commands that enable you to copy a selection from an edit on a track up to the timeline – O (letter); and to copy a selection from the timeline onto an edit on a track – alpha key 0 (number).

Play Timeline selection – ]Play timeline selection
This will play the selection made on the timeline (The highlighted section in the Time Ruler above Region B) Using the Space Bar will play this option.

Play Edit selection – [
This will play the selection made on the track (The highlighted section in the Region A)

If the Timeline and Edit selections are linked then either command will play the highlighted section.