Undo and backups

Undo and redo

The undo/redo feature was added in v1.39. It lets you undo selection and transform changes made while editing a level.

Action	Control
Undo	Ctrl+Z
Redo	Ctrl+Shift+Z

Supported actions

Undo only covers selection and transform changes. For changes that cannot be undone, rely on backups

Can be undone		Cannot be undone
Selecting objects	✅	Creating objects	❌
Moving objects	✅	Deleting objects	❌
Rotating objects	✅	Copy/pasting objects	❌
Scaling objects	✅	Editing components	❌

Backups

Caution

Backups are useful when testing changes or recovering from problems such as a freeze or black screen. However, don’t rely on them as your only backup. If you’re working on an important level, regularly save copies of the level somewhere safe on your computer. Keeping multiple versions lets you recover older work if something goes wrong and a single backup isn’t enough.

The Backup menu lets you create and restore backups of the current archive.

An archive can have up to two backups:

• Manual backup, created and managed by you.
• Automatic backup, created when you use Save and run

Manual backup

Manual backups let you keep a copy of your level that you can restore later.

• Create backup creates a backup next to the original file as <level_name>.pak.backup. Unsaved changes are not included.
• Restore replaces the current level with the backup and reloads the level.
• Overwrite creates a new backup and replaces the existing manual backup.
• Delete removes the manual backup.

Automatic backup

An automatic backup is created when you use Save and run or press Ctrl+L.

• The backup is created before the level is saved and launched.
• Each level can only have one automatic backup. Creating a new one replaces the previous automatic backup for that level.
• Automatic backups do not affect your manual backup.
• You can clear the automatic backup folder if it starts taking up too much space.