Ever wondered how to add items, such as PowerUps, pads, and hazards to your Constructor map? Download the below file, unzip, and replace your current entities.db file with the included file, and replace your current staticshapes folder with the included one. Then restart Constructor, open your map, and click on the entities button (designated with a lightbulb) in the tools section. Click on any of the items listed there to add it to your map. Then, when you're done your map, you must do an interior test to activate the items.

Originally from: https://marbleblast.proboards.com/post/114018/thread