To lock or unlock the track, click on the snowflake symbol under the track's name. Related Articles:-How to merge clips?-What are the keyboard shortcuts in the Audio Editor?-How to undo changes?-How to upload your own music?-What is autoscroll?-How to isolate a track?-Where can I find my original files?-How to add music to my project?-How to fade in and out?-How to delete a clip?-How to use the magnet feature?-How to mute and unmute?-How to change the speed and duration of the recording?-How to trim and split?-How to upload multiple files?