Nice. Reminds me off something like unpacking. I think some indicators which slider scales which object would have been cool. Or event better be able to scale the objects not with ui but via direct interaction with them. Otherwise well done :)
Thinking about it now, it absolutely make sense. It will be a great addition and reduce the UI clutter and make it easier to make more complex levels without cluttering the screen with sliders. I will make sure to add it on the next update. Thanks a lot for the feedback really appreciate it