If you are looking to modernise these old projects, Clickteam Fusion 2.5 Developer is the direct successor and is fully compatible with most MMF2 Build 250 extensions.

: Allows developers to zoom, flip, or resize specific portions of the screen—perfect for split-screen or "picture-in-picture" effects. Legacy Support and Portability

Choosing the Developer edition over the Standard build unlocked specific features essential for professional software creation: