Jaffob has recently released the level save extension.
Extension Name: Level-Save Object
Author: Jaffob
Version: 1.0
Category: Games
License: Free for all uses, no credit required.
Description: This object can create powerful world editors and level designers by providing save/load functionality.
Features:
Storing objects with a certain object type.
Attaching unlimited properties to each object.
Creating level properties that apply to the entire level.
Easily save all stored data.
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Clickteam financed the production of this extension and the source code for it is on file at our offices.
You can be assured this extension will be continue thru future versions of the products.