9c2787c1_he_Beat__A_Blog_by_PremiumBeat__Description
[Command] Overwrite Edit [Shortcut] d [UI Icon] N/A [Description] 
An Overwrite Edit will overwrite the selected clip at the location of the skimmer or playhead.
Final Cut Pro X Shortcuts - The Big Cheat Sheet - The Beat: A Blog by PremiumBeat
Description