In Roblox Studio, use Ctrl + Z to undo a delete, and Ctrl + Y to redo it. On Mac, that’s usually Command + Z for undo and Command + Shift + Z for redo.

Where to find it

  • Open the Edit menu in Roblox Studio.
  • You should see Undo and Redo there, which do the same thing as the keyboard shortcuts.
  • In newer Studio interfaces, undo/redo may also appear in the toolbar or a custom menu area.

If delete won’t come back

  • Some users report that deleted parts do not always return with one method, so try the menu button if the shortcut fails, or the shortcut if the button fails.
  • If the object is still not coming back, check Version History or restore from a saved backup, especially for older changes.

Fast example

If you deleted a part by mistake:

  1. Press Ctrl + Z to bring it back.
  2. If that undoes something you still wanted, press Ctrl + Y to redo it.

TL;DR: Undo delete with Ctrl + Z ; redo with Ctrl + Y.