It's, uh... a tool for changing the value of the Platform behavior properties at runtime so you can test out various settings. You can click to create platforms too.
It might help if you're looking to fine-tune your platform movement and you don't want to keep closing/restarting your .cap after changing a setting. Anyway it's just a little utility and it only took few minutes to make, but someone might find it useful.
Our debugger lets you change values of things at runtime...but it would be cool if you could actually modify edittime values via the runtime and runtime variables via the edittime. Something to add to the 'todo' list